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Mayflies (also known as Canadian soldiers in the United States, and as shadflies or fishflies in Canada and the upper Midwestern U.S.; also up-winged flies in the United Kingdom) are aquatic insects belonging to the order Ephemeroptera. [1]

211 relations: A History of Fly Fishing for Trout, Aedeagus, Alate, Albrecht Dürer, Alderfly, Algae, Alosinae, Alpheus Hyatt, Amber, Ametropodidae, Amphibian, Ancient Greek, Ancient Greek philosophy, Ancient Rome, Angling, Antenna (biology), Anti-predator adaptation, Aquatic insect, Aristotle, Aristotle's biology, Arthropod eye, Arthropod leg, Artificial fly, Australia, Baetidae, Baetis, Baetis intercalaris, Baetiscidae, Baetoidea, Baltic amber, Behningiidae, Bioaccumulation, Biomonitoring, Bioregion, Bioturbation, Bird of prey, Black Sea, Bland Mayfly, Boris Rohdendorf, Bug River, Butterfly, Caddisfly, Caenidae, Caenoidea, Carboniferous, Centroptilum, Cercus, Chalk stream, Chironomidae, Cincinnati, ..., Cladistics, Columbia, Pennsylvania, Columbia–Wrightsville Bridge, Coxoplectoptera, Crato Formation, Crown group, Damselfly, Detritivore, Detritus, Diapause, Diatom, Dolania americana, Dragonfly, Dutch Golden Age, Early Cretaceous, Ecdysis, Ecology, Endangered species, Ephemera, Ephemera vulgata, Ephemerality, Ephemerellidae, Ephemerelloidea, Ephemeridae, Ephemeroidea, Epic of Gilgamesh, Evolution of insects, Exuviae, Family (biology), Fly fishing, Fly-class gunboat, Food chain, Fresh water, Freshwater acidification, Furcatergalia, G. E. M. Skues, Gastropoda, Genus, George Crabbe, Gilbert White, Gill, Gonopore, Grasshopper, Hampshire, Hemimetabolism, Heptageniidae, Heptagenioidea, Herbivore, Hexagenia bilineata, History of Animals, HMA No. 1, HMS Mayfly, Holarctic, Host (biology), Hungary, Imago, Industrial wastewater treatment, Insect mouthparts, Insect reproductive system, Insect wing, Instar, International Union for Conservation of Nature, Isonychiidae, IUCN Red List, Izaak Walton, La Crosse, Wisconsin, Labrum (arthropod mouthpart), Lake Erie, Larry Silver, Larva, Leptohyphidae, Leptophlebiidae, Lilian Bland, Maerten de Vos, Mandible (insect mouthpart), Maxilla (arthropod mouthpart), Mayfly, Mesothorax, Metamorphosis, Metathorax, Minor Tactics of the Chalk Stream, Mississippi River, Monophyly, Moravia, Moulting, Mureș (river), Natural History (Pliny), Nematode, Neoephemera, Neoephemera antiqua, Neotropical realm, New Alresford, Newspaper, Nike, Inc., North America, Nymph (biology), Ohio River, Oligoneuriidae, Operculum (animal), Order (biology), Palaeoptera, Paleontological Journal, Palingenia longicauda, Palingeniidae, Pamela H. Smith, Pannota, Paragordius varius, Parasitism, Pennsylvania Route 462, Pentagenia robusta, Periphyton, Permian, Pesticide, PH, Plecoptera, Pliny the Elder, Polarization (waves), Potamanthidae, Predation, Predator satiation, Primary producers, Primary production, Prothorax, Pub, Rhithrogena germanica, Richard Wilbur, River Test, Royal Navy, Schistonota, Sclerotin, Seddon Mayfly, Serbia, Sewage, Siberia, Simple eye in invertebrates, Siphlonuridae, Species, Stanford University Press, Susquehanna River, Szeged, Tasmanophlebi lacuscoerulei, Taxon, Taylor & Francis, The Compleat Angler, The Holy Family with the Dragonfly, The Natural History and Antiquities of Selborne, Thorax (insect anatomy), Tisza, Toxic heavy metal, Trematoda, Trout, United States Poet Laureate, Vestigiality, Vickers, Vodafone, Washington (state), Water pollution, Weather radar, Wrightsville, Pennsylvania, Ypresian, Zootaxa. Expand index (161 more) »

A History of Fly Fishing for Trout

A History of Fly Fishing for Trout is a fly fishing book written by John Waller Hills published in London in 1921.

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An aedeagus (plural aedeagi) is a reproductive organ of male arthropods through which they secrete sperm from the testes during copulation with a female.

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Alate is an adjective that refers to wings or winglike structures.

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Albrecht Dürer

Albrecht Dürer (21 May 1471 – 6 April 1528)Müller, Peter O. (1993) Substantiv-Derivation in Den Schriften Albrecht Dürers, Walter de Gruyter.

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Alderflies are megalopteran insects of the family Sialidae.

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Algae (singular alga) is an informal term for a large, diverse group of photosynthetic organisms that are not necessarily closely related, and is thus polyphyletic.

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The Alosinae, or the shads, ITIS are a subfamily of fishes in the herring family Clupeidae.

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Alpheus Hyatt

Alpheus Hyatt (April 5, 1838 – January 15, 1902) was an American zoologist and palaeontologist.

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Amber is fossilized tree resin, which has been appreciated for its color and natural beauty since Neolithic times.

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Ametropodidae is a family of sand minnows in the order Ephemeroptera.

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Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia.

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Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

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Ancient Greek philosophy

Ancient Greek philosophy arose in the 6th century BC and continued throughout the Hellenistic period and the period in which Ancient Greece was part of the Roman Empire.

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Ancient Rome

In historiography, ancient Rome is Roman civilization from the founding of the city of Rome in the 8th century BC to the collapse of the Western Roman Empire in the 5th century AD, encompassing the Roman Kingdom, Roman Republic and Roman Empire until the fall of the western empire.

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Angling is a method of fishing by means of an "angle" (fish hook).

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Antenna (biology)

Antennae (singular: antenna), sometimes referred to as "feelers," are paired appendages used for sensing in arthropods.

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Anti-predator adaptation

Anti-predator adaptations are mechanisms developed through evolution that assist prey organisms in their constant struggle against predators.

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Aquatic insect

Aquatic insects or water insects live some portion of their life cycle in the water.

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Aristotle (Ἀριστοτέλης Aristotélēs,; 384–322 BC) was an ancient Greek philosopher and scientist born in the city of Stagira, Chalkidiki, in the north of Classical Greece.

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Aristotle's biology

Aristotle's biology is the theory of biology, grounded in systematic observation and collection of data, mainly zoological, embodied in Aristotle's books on the science.

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Arthropod eye

Apposition eyes are the most common form of eye, and are presumably the ancestral form of compound eye.

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Arthropod leg

The arthropod leg is a form of jointed appendage of arthropods, usually used for walking.

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Artificial fly

An artificial fly or fly lure is a type of fishing lure, usually used in the sport of fly fishing (although they may also be used in other forms of angling).

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Australia, officially the Commonwealth of Australia, is a sovereign country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands.

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Baetidae is a family of mayflies with about 1000 described species in 110 genera distributed worldwide.

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Baetis is a genus of mayflies of the family Baetidae, known as the blue-winged olive to anglers.

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Baetis intercalaris

Baetis intercalaris is a species of small minnow mayfly in the family Baetidae.

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Baetiscidae is a family of armored mayflies in the order Ephemeroptera.

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Baetoidea is a superfamily of mayflies, which probably includes the most primitive living species.

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Baltic amber

The Baltic region is home to the largest known deposit of amber, called Baltic amber or succinite.

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Behningiidae is a family of mayflies.

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Bioaccumulation is the accumulation of substances, such as pesticides, or other chemicals in an organism.

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In analytical chemistry, biomonitoring is the measurement of the body burden of toxic chemical compounds, elements, or their metabolites, in biological substances.

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A bioregion is an ecologically and geographically defined area that is smaller than an ecozone, but larger than an ecoregion or an ecosystem, in WWF classification scheme.

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Bioturbation is defined as the reworking of soils and sediments by animals or plants.

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Bird of prey

A bird of prey, predatory bird, or raptor is any of several species of bird that hunts and feeds on rodents and other animals.

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Black Sea

The Black Sea is a body of water and marginal sea of the Atlantic Ocean between Eastern Europe, the Caucasus, and Western Asia.

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Bland Mayfly

The Bland Mayfly was an early aircraft constructed in 1910 by Lilian E. Bland in Carnmoney in Northern Ireland.

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Boris Rohdendorf

Boris Borissovich Rohdendorf (12 July 1904 – 21 November 1977) was a Russian entomologist and curator at the Zoological Museum at the University of Moscow.

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Bug River

The Bug River (Bug or Western Bug; Західний Буг, Zakhidnyy Buh, Захо́дні Буг, Zakhodni Buh; Западный Буг, Zapadnyy Bug) is a major European river which flows through three countries with a total length of.

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Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths.

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The caddisflies, or order Trichoptera, are a group of insects with aquatic larvae and terrestrial adults.

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Caenidae, or the Small Squaregill Mayflies, is a family of insects consisting of 5 genera comprising 26 individual species.

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Caenoidea is a superfamily of mayflies in the suborder Pannota.

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The Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period million years ago (Mya), to the beginning of the Permian Period, Mya.

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Centroptilum is a genus of mayflies of the Baetidae family.

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Cerci (singular cercus) are paired appendages on the rear-most segments of many arthropods, including insects and symphylans.

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Chalk stream

Chalk streams are streams that flow through chalk hills towards the sea.

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The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) comprise a families of nematoceran flies with a global distribution.

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No description.

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Cladistics (from Greek κλάδος, cládos, i.e., "branch") is an approach to biological classification in which organisms are categorized in groups ("clades") based on the most recent common ancestor.

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Columbia, Pennsylvania

Columbia, formerly Wright's Ferry, is a borough (town) in Lancaster County, Pennsylvania, 28 miles (45 km) southeast of Harrisburg on the east (left) bank of the Susquehanna River, across from Wrightsville and York County and just south of U.S. Route 30.

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Columbia–Wrightsville Bridge

The Columbia–Wrightsville Bridge, officially the Veterans Memorial Bridge, spans the Susquehanna River between Columbia and Wrightsville, Pennsylvania, and carries Pennsylvania Route 462 and BicyclePA Route S. Built originally as the Lancaster-York Intercounty Bridge, construction began in 1929, and the bridge opened September 30, 1930.

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Coxoplectoptera or "chimera wings" is a primitive, extinct order of winged insects containing one family, Mickoleitiidae, discovered in 2007.

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Crato Formation

The Crato Formation is a geologic formation of Early Cretaceous age in northeastern Brazil's Araripe Basin.

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Crown group

In phylogenetics, the crown group of a collection of species consists of the living representatives of the collection together with their ancestors back to their most recent common ancestor as well as all of that ancestor's descendants.

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Damselflies are insects of the suborder Zygoptera in the order Odonata.

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Detritivores, also known as detrivores, detritophages, detritus feeders, or detritus eaters, are heterotrophs that obtain nutrients by consuming detritus (decomposing plant and animal parts as well as feces).

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In biology, detritus is dead particulate organic material (as opposed to dissolved organic material).

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Diapause, when referencing animal dormancy, is the delay in development in response to regularly and recurring periods of adverse environmental conditions.

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Diatoms (diá-tom-os "cut in half", from diá, "through" or "apart"; and the root of tém-n-ō, "I cut".) are a major group of microorganisms found in the oceans, waterways and soils of the world.

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Dolania americana

Dolania americana is a species of mayfly in the family Behningiidae.

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A dragonfly is an insect belonging to the order Odonata, infraorder Anisoptera (from Greek ἄνισος anisos, "uneven" and πτερόν pteron, "wing", because the hindwing is broader than the forewing).

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Dutch Golden Age

The Dutch Golden Age (Gouden Eeuw) was a period in the history of the Netherlands, roughly spanning the 17th century, in which Dutch trade, science, military, and art were among the most acclaimed in the world.

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Early Cretaceous

The Early Cretaceous/Middle Cretaceous (geochronological name) or the Lower Cretaceous (chronostratigraphic name), is the earlier or lower of the two major divisions of the Cretaceous.

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Ecdysis is the moulting of the cuticle in many invertebrates of the clade Ecdysozoa.

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Ecology (from οἶκος, "house", or "environment"; -λογία, "study of") is the branch of biology which studies the interactions among organisms and their environment.

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Endangered species

An endangered species is a species which has been categorized as very likely to become extinct.

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Ephemera (singular: ephemeron) are any transitory written or printed matter not meant to be retained or preserved.

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Ephemera vulgata

Ephemera vulgata is a species of mayfly in the genus Ephemera.

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Ephemerality (from Greek εφήμερος – ephemeros, literally "lasting only one day") is the concept of things being transitory, existing only briefly.

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Ephemerellidae are known as the Spiny Crawler Mayflies.

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Ephemerelloidea is a superfamily of mayflies in the suborder Pannota.

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Ephemeridae is a family of mayflies with about 150 described species found throughout the world except Australia and Oceania.

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Ephemeroidea is a superfamily of mayflies.

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Epic of Gilgamesh

The Epic of Gilgamesh is an epic poem from ancient Mesopotamia that is often regarded as the earliest surviving great work of literature.

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Evolution of insects

The most recent understanding of the evolution of insects is based on studies of the following branches of science: molecular biology, insect morphology, paleontology, insect taxonomy, evolution, embryology, bioinformatics and scientific computing.

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In biology, exuviae are the remains of an exoskeleton and related structures that are left after ecdysozoans (including insects, crustaceans and arachnids) have moulted.

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Family (biology)

In biological classification, family (familia, plural familiae) is one of the eight major taxonomic ranks; it is classified between order and genus.

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Fly fishing

Fly fishing is an angling method in which an artificial "fly" is used to catch fish.

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Fly-class gunboat

The Fly-class river gunboats (or small China gunboatsthe s were "large China gunboats".), collectively often referred to as the "Tigris gunboat flotilla", were a class of small but well-armed Royal Navy vessels designed specifically to patrol the Tigris river during the World War I Mesopotamian Campaign (the China name was to disguise their function).

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Food chain

A food chain is a linear network of links in a food web starting from producer organisms (such as grass or trees which use radiation from the Sun to make their food) and ending at apex predator species (like grizzly bears or killer whales), detritivores (like earthworms or woodlice), or decomposer species (such as fungi or bacteria).

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Fresh water

Fresh water (or freshwater) is any naturally occurring water except seawater and brackish water.

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Freshwater acidification

Acidification of freshwater is an environmental issue.

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Furcatergalia is a suborder of mayflies in the order Ephemeroptera.

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G. E. M. Skues

George Edward MacKenzie Skues, usually known as G. E. M. Skues (1858–1949), was a British lawyer, author and fly fisherman most noted for the invention of modern-day nymph fishing and the controversy it caused with the Chalk stream dry fly doctrine developed by Frederic M. Halford.

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The gastropods, more commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca, called Gastropoda.

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A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology.

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George Crabbe

George Crabbe (24 December 1754 – 3 February 1832) was an English poet, surgeon and clergyman.

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Gilbert White

Gilbert White FRS (18 July 1720 – 26 June 1793) was a "parson-naturalist", a pioneering English naturalist and ornithologist.

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A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide.

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A gonopore, sometimes called a gonadopore, is a genital pore in many invertebrates.

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Grasshoppers are insects of the suborder Caelifera within the order Orthoptera, which includes crickets and their allies in the other suborder Ensifera.

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Hampshire (abbreviated Hants) is a county on the southern coast of England in the United Kingdom.

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Hemimetabolism or hemimetaboly, also called incomplete metamorphosis and paurometabolism,McGavin, George C. Essential Entomology: An Order-by-Order Introduction.

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The Heptageniidae (synonym: Ecdyonuridae) are a family of mayflies with over 500 described species mainly distributed in the Holarctic, Oriental, and Afrotropical regions, and also present in the Central American Tropics and extreme northern South America.

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Heptagenioidea is a superfamily of mayflies.

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A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage, for the main component of its diet.

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Hexagenia bilineata

Hexagenia bilineata is a species of mayfly in the family Ephemeridae.

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History of Animals

History of Animals (Τῶν περὶ τὰ ζῷα ἱστοριῶν, Ton peri ta zoia historion, "Inquiries on Animals"; Historia Animālium "History of Animals") is one of the major texts on biology by the ancient Greek philosopher Aristotle, who had studied at Plato's Academy in Athens.

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HMA No. 1

His Majesty's Airship No.

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HMS Mayfly

HMS Mayfly may refer to two vessels of the British Royal Navy named after the mayfly.

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The Holarctic is the name for the biogeographic realm that encompasses the majority of habitats found throughout the northern continents of the world, combining Wallace's Palearctic zoogeographical region, consisting of North Africa and all of Eurasia (with the exception of the southern Arabian Peninsula, Southeast Asia, and the Indian subcontinent), and the Nearctic zoogeographical region, consisting of North America, north of Mexico.

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Host (biology)

In biology and medicine, a host is an organism that harbours a parasitic, a mutualistic, or a commensalist guest (symbiont), the guest typically being provided with nourishment and shelter.

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Hungary (Magyarország) is a country in Central Europe that covers an area of in the Carpathian Basin, bordered by Slovakia to the north, Ukraine to the northeast, Austria to the northwest, Romania to the east, Serbia to the south, Croatia to the southwest, and Slovenia to the west.

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In biology, the imago is the last stage an insect attains during its metamorphosis, its process of growth and development; it also is called the imaginal stage, the stage in which the insect attains maturity.

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Industrial wastewater treatment

Industrial wastewater treatment describes the processes used for treating wastewater that is produced by industries as an undesirable by-product.

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Insect mouthparts

Insects have a range of mouthparts, adapted to particular modes of feeding.

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Insect reproductive system

Most insects reproduce oviparously, i.e. by laying eggs.

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Insect wing

Insect wings are adult outgrowths of the insect exoskeleton that enable insects to fly.

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An instar (from the Latin "form", "likeness") is a developmental stage of arthropods, such as insects, between each moult (ecdysis), until sexual maturity is reached.

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International Union for Conservation of Nature

The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources.

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Isonychiidae is a family of brushlegged mayflies in the order Ephemeroptera.

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IUCN Red List

The IUCN Red List of Threatened Species (also known as the IUCN Red List or Red Data List), founded in 1964, has evolved to become the world's most comprehensive inventory of the global conservation status of biological species.

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Izaak Walton

Izaak Walton (–1683) was an English writer.

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La Crosse, Wisconsin

La Crosse is a city in the U.S. state of Wisconsin and the county seat of La Crosse County.

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Labrum (arthropod mouthpart)

The labrum is a flap-like structure that lies immediately in front of the mouth in almost all extant Euarthropoda.

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Lake Erie

Lake Erie is the fourth-largest lake (by surface area) of the five Great Lakes in North America, and the eleventh-largest globally if measured in terms of surface area.

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Larry Silver

Larry Silver (born 1934) is an American photographer.

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A larva (plural: larvae) is a distinct juvenile form many animals undergo before metamorphosis into adults.

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Leptohyphidae is a family of mayflies with some 140 described species in 12 genera.

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Leptophlebiidae is a family belonging to the Ephemeropterans that are commonly known as the prong-gilled mayflies or leptophlebiids.

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Lilian Bland

Lilian Bland (22 September 1878 – 11 May 1971) was an Anglo-Irish journalist and aviator who, in 1910–11, became one of the first women in the world to design, build, and fly an aircraft.

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Maerten de Vos

Maerten de Vos, Maerten de Vos the Elder or Marten de Vos (1532 – 4 December 1603) was a Flemish painter mainly of history paintings and portraits.

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Mandible (insect mouthpart)

Insect mandibles are a pair of appendages near the insect’s mouth, and the most anterior of the three pairs of oral appendages (the labrum is more anterior, but is a single fused structure).

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Maxilla (arthropod mouthpart)

In arthropods, the maxillae (singular maxilla) are paired structures present on the head as mouthparts in members of the clade Mandibulata, used for tasting and manipulating food.

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Mayflies (also known as Canadian soldiers in the United States, and as shadflies or fishflies in Canada and the upper Midwestern U.S.; also up-winged flies in the United Kingdom) are aquatic insects belonging to the order Ephemeroptera.

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The mesothorax is the middle of the three segments in the thorax of an insect, and bears the second pair of legs.

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Metamorphosis is a biological process by which an animal physically develops after birth or hatching, involving a conspicuous and relatively abrupt change in the animal's body structure through cell growth and differentiation.

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The metathorax is the posterior of the three segments in the thorax of an insect, and bears the third pair of legs.

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Minor Tactics of the Chalk Stream

Minor Tactics of the Chalk Stream and Kindred Studies is a fly fishing book written by G. E. M. Skues published in London in 1910.

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Mississippi River

The Mississippi River is the chief river of the second-largest drainage system on the North American continent, second only to the Hudson Bay drainage system.

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In cladistics, a monophyletic group, or clade, is a group of organisms that consists of all the descendants of a common ancestor.

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Moravia (Morava;; Morawy; Moravia) is a historical country in the Czech Republic (forming its eastern part) and one of the historical Czech lands, together with Bohemia and Czech Silesia.

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In biology, moulting (British English), or molting (American English), also known as sloughing, shedding, or in many invertebrates, ecdysis, is the manner in which an animal routinely casts off a part of its body (often, but not always, an outer layer or covering), either at specific times of the year, or at specific points in its life cycle.

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Mureș (river)

The Mureș (Maros,; Moriš) is a river in Eastern Europe.

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Natural History (Pliny)

The Natural History (Naturalis Historia) is a book about the whole of the natural world in Latin by Pliny the Elder, a Roman author and naval commander who died in 79 AD.

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The nematodes or roundworms constitute the phylum Nematoda (also called Nemathelminthes).

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Neoephemera is a genus of large squaregill mayflies in the family Neoephemeridae.

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Neoephemera antiqua

Neoephemera antiqua is an extinct species of mayfly in the family Neoephemeridae that is known from early Eocene, Ypresian stage, lake deposits near the small community of Republic in Ferry County, Washington, USA.

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Neotropical realm

The Neotropical realm is one of the eight biogeographic realms constituting the Earth's land surface.

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New Alresford

New Alresford or simply Alresford is a small town and civil parish in the City of Winchester district of Hampshire, England.

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A newspaper is a periodical publication containing written information about current events.

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Nike, Inc.

Nike, Inc. is an American multinational corporation that is engaged in the design, development, manufacturing, and worldwide marketing and sales of footwear, apparel, equipment, accessories, and services.

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North America

North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere; it is also considered by some to be a northern subcontinent of the Americas.

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Nymph (biology)

In biology, a nymph is the immature form of some invertebrates, particularly insects, which undergoes gradual metamorphosis (hemimetabolism) before reaching its adult stage.

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Ohio River

The Ohio River, which streams westward from Pittsburgh, Pennsylvania, to Cairo, Illinois, is the largest tributary, by volume, of the Mississippi River in the United States.

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Oligoneuriidae is a family of brushleg mayflies in the family Oligoneuriidae.

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Operculum (animal)

An operculum is an anatomical feature, a stiff structure resembling a lid or a small door that opens and closes, and thus controls contact between the outside world and an internal part of an animal.

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Order (biology)

In biological classification, the order (ordo) is.

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The name Palaeoptera has been traditionally applied to those ancestral groups of winged insects (most of them extinct) that lacked the ability to fold the wings back over the abdomen as characterizes the Neoptera.

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Paleontological Journal

Paleontological Journal (Russian: Paleontologicheskii Zhurnal) is a monthly peer-reviewed Russian journal of paleontology established in 1959.

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Palingenia longicauda

Palingenia longicauda is an aquatic insect in the order Ephemeroptera.

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Palingeniidae is a family of mayflies, members of which are known as spiny-headed burrowing mayflies.

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Pamela H. Smith

Pamela H. Smith is a historian of science specializing in attitudes to nature in early modern Europe (1350-1700), with particular attention to craft knowledge and the role of craftspeople in the Scientific Revolution.

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Pannota is a suborder of mayflies.

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Paragordius varius

Paragordius varius, also known as the nematomorphs or horsehair worm, are known to control their definitive host to jump into a pool of water, thus allowing the adult worm to escape and reproduce.

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In evolutionary biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.

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Pennsylvania Route 462

Pennsylvania Route 462 (PA 462) is a east–west running local state route in York and Lancaster counties in central Pennsylvania.

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Pentagenia robusta

Robust Burrowing Mayfly, Pentagenia robusta is a recently extinct species of mayfly in the family Ephemeridae.

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Periphyton is a complex mixture of algae, cyanobacteria, heterotrophic microbes, and detritus that is attached to submerged surfaces in most aquatic ecosystems.

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The Permian is a geologic period and system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic period 251.902 Mya.

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Pesticides are substances that are meant to control pests, including weeds.

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In chemistry, pH is a logarithmic scale used to specify the acidity or basicity of an aqueous solution.

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The Plecoptera are an order of insects, commonly known as stoneflies.

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Pliny the Elder

Pliny the Elder (born Gaius Plinius Secundus, AD 23–79) was a Roman author, naturalist and natural philosopher, a naval and army commander of the early Roman Empire, and friend of emperor Vespasian.

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Polarization (waves)

Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.

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Potamanthidae is a family of mayflies with three genera in which there are 23 species.

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Predation is a biological interaction where a predator (a hunting animal) kills and eats its prey (the organism that is attacked).

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Predator satiation

Predator satiation (less commonly called predator saturation) is an antipredator adaptation in which prey briefly occur at high population densities, reducing the probability of an individual organism being eaten.

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Primary producers

Primary producers take energy from other organisms and turn it into energy that is used.

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Primary production

Global oceanic and terrestrial photoautotroph abundance, from September 1997 to August 2000. As an estimate of autotroph biomass, it is only a rough indicator of primary-production potential, and not an actual estimate of it. Provided by the SeaWiFS Project, NASA/Goddard Space Flight Center and ORBIMAGE. In ecology, primary production is the synthesis of organic compounds from atmospheric or aqueous carbon dioxide.

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The prothorax is the foremost of the three segments in the thorax of an insect, and bears the first pair of legs.

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A pub, or public house, is an establishment licensed to sell alcoholic drinks, which traditionally include beer (such as ale) and cider.

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Rhithrogena germanica

Rhithrogena germanica is a European species of mayfly, and is "probably the most famous of all British mayflies", because of its use in fly fishing. It is known in the British Isles as the March brown mayfly, a name which is used in the United States for a different species, Rhithrogena morrisoni. It emerges as a subimago at the end of winter, and can be distinguished from similar species by a dark spot on the femur of each leg.

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Richard Wilbur

Richard Purdy Wilbur (March 1, 1921 – October 14, 2017) was an American poet and literary translator.

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River Test

The River Test is a river in Hampshire, England.

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Royal Navy

The Royal Navy (RN) is the United Kingdom's naval warfare force.

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Schistonota is a suborder of mayflies.

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Sclerotin is a component of the cuticles of various Arthropoda, most familiarly insects.

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Seddon Mayfly

The Seddon Mayfly was a tandem biplane of unusual construction.

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Serbia (Србија / Srbija),Pannonian Rusyn: Сербия; Szerbia; Albanian and Romanian: Serbia; Slovak and Czech: Srbsko,; Сърбия.

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Sewage (or domestic wastewater or municipal wastewater) is a type of wastewater that is produced from a community of people.

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Siberia (a) is an extensive geographical region, and by the broadest definition is also known as North Asia.

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Simple eye in invertebrates

A simple eye (sometimes called a pigment pit) refers to a type of eye form or optical arrangement that contains a single lens.

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Siphlonuridae, also known as the primitive minnow mayfly, is a family of insects belonging to the order Ephemeroptera.

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In biology, a species is the basic unit of classification and a taxonomic rank, as well as a unit of biodiversity, but it has proven difficult to find a satisfactory definition.

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Stanford University Press

The Stanford University Press (SUP) is the publishing house of Stanford University.

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Susquehanna River

The Susquehanna River (Lenape: Siskëwahane) is a major river located in the northeastern United States.

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Szeged (see also other alternative names) is the third largest city of Hungary, the largest city and regional centre of the Southern Great Plain and the county seat of Csongrád county.

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Tasmanophlebi lacuscoerulei

Tasmanophlebi lacuscoerulei is a species of mayfly in family Siphlonuridae.

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In biology, a taxon (plural taxa; back-formation from taxonomy) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit.

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Taylor & Francis

Taylor & Francis Group is an international company originating in England that publishes books and academic journals.

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The Compleat Angler

The Compleat Angler (the spelling is sometimes modernised to The Complete Angler) is a book by Izaak Walton.

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The Holy Family with the Dragonfly

The Holy Family with the Dragonfly, also known as The Holy Family with the Mayfly, The Holy Family with the Locust and The Holy Family with the Butterfly is an engraving by the German artist Albrecht Dürer (1471–1528) from approximately 1495.

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The Natural History and Antiquities of Selborne

The Natural History and Antiquities of Selborne, or just The Natural History of Selborne is a book by English naturalist and ornithologist Gilbert White.

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Thorax (insect anatomy)

The thorax is the midsection (tagma) of the insect body.

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The Tisza or Tisa is one of the main rivers of Central Europe.

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Toxic heavy metal

A toxic heavy metal is any relatively dense metal or metalloid that is noted for its potential toxicity, especially in environmental contexts.

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Trematoda is a class within the phylum Platyhelminthes.

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Trout is the common name for a number of species of freshwater fish belonging to the genera Oncorhynchus, Salmo and Salvelinus, all of the subfamily Salmoninae of the family Salmonidae.

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United States Poet Laureate

The Poet Laureate Consultant in Poetry to the Library of Congress—commonly referred to as the United States Poet Laureate—serves as the official poet of the United States.

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Vestigiality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species.

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Vickers was a famous name in British engineering that existed through many companies from 1828 until 1999.

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Vodafone Group plc is a British multinational telecommunications conglomerate, with headquarters in London.

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Washington (state)

Washington, officially the State of Washington, is a state in the Pacific Northwest region of the United States.

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Water pollution

Water pollution is the contamination of water bodies, usually as a result of human activities.

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Weather radar

Weather radar, also called weather surveillance radar (WSR) and Doppler weather radar, is a type of radar used to locate precipitation, calculate its motion, and estimate its type (rain, snow, hail etc.). Modern weather radars are mostly pulse-Doppler radars, capable of detecting the motion of rain droplets in addition to the intensity of the precipitation.

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Wrightsville, Pennsylvania

Wrightsville is a borough in York County, Pennsylvania, United States.

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In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene.

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Zootaxa is a peer-reviewed scientific mega journal for animal taxonomists.

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Redirects here:

Dayfly, Drake fly, Ephemerids, Ephemeroptera, Ephemeropteran, Ephemeropteroidea, May fly, May-Fly, May-fly, Mayflies, One day fly, Shad fly, Shadfly, Subimago, Tisza flower.


[1] https://en.wikipedia.org/wiki/Mayfly

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