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Egg

Index Egg

An egg is the organic vessel containing the zygote in which an animal embryo develops until it can survive on its own; at which point the animal hatches. [1]

188 relations: Agnatha, Alfred Romer, Alice Miles Woodruff, Amniote, Amniotic sac, Amphibian, Anguis fragilis, Animal, Annelid, Arthropod, Batoidea, Bee hummingbird, Biliverdin, Bird, Bird egg, Bivalvia, Black oystercatcher, Body plan, Brood parasite, Budding, Calcium carbonate, Cannibalism, Cassowary, Cell nucleus, Cephalopod, Charadriiformes, Chelation, Chicken, Chickenpox, Chondrichthyes, Chordate, Chorion, Cilium, Class (biology), Clutch (eggs), Cnidaria, Cod, Coelacanth, Columbidae, Common blackbird, Common murre, Common ostrich, Condor, Cormorant, Cowbird, Crow, Crustacean, Cuckoo, Cytoplasm, Dancing egg, ..., Dasypeltis, Developmental biology, Dime (United States coin), Dinosaur, Duck, Echidna, Echinoderm, Egg as food, Egg case (Chondrichthyes), Egg cell, Egg fossil, Egg incubation, Egg tooth, Egg white, Eggshell, Elephant bird, Embryo, Emergence, Emu, Ernest William Goodpasture, Eurasian oystercatcher, Exoskeleton, Finch, Fish, Flamingo, Flatworm, Food and drink prohibitions, Fox, Frog, Gamete, Gametophyte, Gene, Gill, Goose, Grey foam-nest tree frog, Grey partridge, Guineafowl, Gull, Hagfish, Halakha, Hammerhead shark, Haugh unit, Hermann's tortoise, Herring, Huffmanela hamo, Hylidae, Indian egg-eating snake, Influenza, Insect, Invertebrate, Kashrut, Kingdom (biology), Kiwi, Lamprey, Lancelet, Larva, List of egg topics, Long-tailed weasel, Mammal, Marsupial, Mayonnaise, Mink, Mollusca, Monotreme, Morula, Multicellular organism, Nematode, New York City, Nightjar, Oology, Oophagy, Opodiphthera eucalypti, Osteichthyes, Otter, Oval, Ovary, Oviduct, Oviparity, Ovoviviparity, Ovulation, Parasitism, Passerine, Perivitelline space, Phylotype, Placenta, Placentalia, Planula, Platypus, Primate, Protoporphyrin IX, Raccoon, Reef shark, Reptile, Rickettsia, Rocky Mountain spotted fever, Salamander, Sandgrouse, Schistosoma mekongi, Scorpion, SeaWorld, Seed, Senegal parrot, Shark, Skate (fish), Skunk, Smallpox, Snail, Snake, Southern cassowary, Spawn (biology), Sperm, Spermatophyte, Spider, Sponge, Spore, Stoat, Tadpole, The Atlantic, Theria, Thierry Lodé, Tinamou, Trophic egg, Typhus, Umbilical cord, Uterus, Vanderbilt University, Vertebrate, Virus, Vitelline membrane, Viviparity, Whale shark, Whooping crane, Wildlife and Countryside Act 1981, Yellow fever, Yolk, Yolk sac, ZW sex-determination system, Zygote. Expand index (138 more) »

Agnatha

Agnatha (Greek, "no jaws") is a superclass of jawless fish in the phylum Chordata, subphylum Vertebrata, consisting of both present (cyclostomes) and extinct (conodonts and ostracoderms) species.

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Alfred Romer

Alfred Sherwood Romer (December 28, 1894 – November 5, 1973) was an American paleontologist and biologist and a specialist in vertebrate evolution.

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Alice Miles Woodruff

Alice Miles Woodruff (also known as Alice Lincoln Miles), together with Ernest William Goodpasture developed a method for growing fowlpox outside of a live chicken.

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Amniote

Amniotes (from Greek ἀμνίον amnion, "membrane surrounding the fetus", earlier "bowl in which the blood of sacrificed animals was caught", from ἀμνός amnos, "lamb") are a clade of tetrapod vertebrates comprising the reptiles, birds, and mammals.

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Amniotic sac

The amniotic sac, commonly called the bag of waters, sometimes the membranes, is the sac in which the fetus develops in amniotes.

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Amphibian

Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia.

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Anguis fragilis

Anguis fragilis, the slowworm, is a legless lizard native to Eurasia.

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Animal

Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.

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Annelid

The annelids (Annelida, from Latin anellus, "little ring"), also known as the ringed worms or segmented worms, are a large phylum, with over 22,000 extant species including ragworms, earthworms, and leeches.

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Arthropod

An arthropod (from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages.

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Batoidea

Batoidea is a superorder of cartilaginous fish commonly known as rays.

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Bee hummingbird

The bee hummingbird, zunzuncito or Helena hummingbird (Mellisuga helenae) is a species of hummingbird which is the world's smallest bird.

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Biliverdin

Biliverdin is a green tetrapyrrolic bile pigment, and is a product of heme catabolism.

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Bird

Birds, also known as Aves, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton.

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Bird egg

Bird eggs are laid by the females and incubated for a time that varies according to the species; a single young hatches from each egg.

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Bivalvia

Bivalvia, in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts.

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Black oystercatcher

The black oystercatcher (Haematopus bachmani) is a conspicuous black bird found on the shoreline of western North America.

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Body plan

A body plan, Bauplan (German plural Baupläne), or ground plan is a set of morphological features common to many members of a phylum of animals.

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Brood parasite

Brood parasites are organisms that rely on others to raise their young.

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Budding

Budding is a type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division at one particular site.

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Calcium carbonate

Calcium carbonate is a chemical compound with the formula CaCO3.

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Cannibalism

Cannibalism is the act of one individual of a species consuming all or part of another individual of the same species as food.

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Cassowary

Cassowaries, genus Casuarius, are ratites (flightless birds without a keel on their sternum bone) that are native to the tropical forests of New Guinea (Papua New Guinea and Indonesia), nearby islands, and northeastern Australia.

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Cell nucleus

In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel or seed) is a membrane-enclosed organelle found in eukaryotic cells.

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Cephalopod

A cephalopod is any member of the molluscan class Cephalopoda (Greek plural κεφαλόποδα, kephalópoda; "head-feet") such as a squid, octopus or nautilus.

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Charadriiformes

Charadriiformes is a diverse order of small to medium-large birds.

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Chelation

Chelation is a type of bonding of ions and molecules to metal ions.

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Chicken

The chicken (Gallus gallus domesticus) is a type of domesticated fowl, a subspecies of the red junglefowl.

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Chickenpox

Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV).

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Chondrichthyes

Chondrichthyes (from Greek χονδρ- chondr- 'cartilage', ἰχθύς ichthys 'fish') is a class that contains the cartilaginous fishes: they are jawed vertebrates with paired fins, paired nares, scales, a heart with its chambers in series, and skeletons made of cartilage rather than bone.

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Chordate

A chordate is an animal belonging to the phylum Chordata; chordates possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail, for at least some period of their life cycle.

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Chorion

The chorion is the outermost fetal membrane around the embryo in mammals, birds and reptiles.

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Cilium

A cilium (the plural is cilia) is an organelle found in eukaryotic cells.

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Class (biology)

In biological classification, class (classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank.

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Clutch (eggs)

A clutch of eggs is the group of eggs produced by birds, amphibians, or reptiles, often at a single time, particularly those laid in a nest.

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Cnidaria

Cnidaria is a phylum containing over 10,000 species of animals found exclusively in aquatic (freshwater and marine) environments: they are predominantly marine species.

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Cod

Cod is the common name for the demersal fish genus Gadus, belonging to the family Gadidae.

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Coelacanth

The coelacanths constitute a now rare order of fish that includes two extant species in the genus Latimeria: the West Indian Ocean coelacanth (Latimeria chalumnae) primarily found near the Comoro Islands off the east coast of Africa and the Indonesian coelacanth (Latimeria menadoensis).

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Columbidae

Pigeons and doves constitute the animal family Columbidae and the order Columbiformes, which includes about 42 genera and 310 species.

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Common blackbird

The common blackbird (Turdus merula) is a species of true thrush.

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Common murre

The common murre or common guillemot (Uria aalge) is a large auk.

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Common ostrich

The ostrich or common ostrich (Struthio camelus) is either of two species of large flightless birds native to Africa, the only living member(s) of the genus Struthio, which is in the ratite family.

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Condor

Condor is the common name for two species of New World vultures, each in a monotypic genus.

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Cormorant

Phalacrocoracidae is a family of approximately 40 species of aquatic birds commonly known as cormorants and shags.

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Cowbird

Cowbirds are birds belonging to the genus Molothrus in the family Icteridae.

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Crow

A Crow is a bird of the genus Corvus, or more broadly is a synonym for all of Corvus.

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Crustacean

Crustaceans (Crustacea) form a large, diverse arthropod taxon which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill, woodlice, and barnacles.

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Cuckoo

The cuckoos are a family of birds, Cuculidae, the sole taxon in the order Cuculiformes.

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Cytoplasm

In cell biology, the cytoplasm is the material within a living cell, excluding the cell nucleus.

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Dancing egg

The dancing egg (L'ou com balla in Catalan) is an old tradition that takes place in several towns in Catalonia during the feast of Corpus Christi.

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Dasypeltis

Dasypeltis is a genus of colubrid snakes.

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Developmental biology

Developmental biology is the study of the process by which animals and plants grow and develop.

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Dime (United States coin)

The dime, in U.S. usage, is a ten-cent coin, one tenth of a United States dollar, labeled formally as "one dime".

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Dinosaur

Dinosaurs are a diverse group of reptiles of the clade Dinosauria.

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Duck

Duck is the common name for a large number of species in the waterfowl family Anatidae, which also includes swans and geese.

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Echidna

Echidnas, sometimes known as spiny anteaters, belong to the family Tachyglossidae in the monotreme order of egg-laying mammals.

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Echinoderm

Echinoderm is the common name given to any member of the phylum Echinodermata (from Ancient Greek, ἐχῖνος, echinos – "hedgehog" and δέρμα, derma – "skin") of marine animals.

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Egg as food

Eggs are laid by female animals of many different species, including birds, reptiles, amphibians, mammals, and fish, and have been eaten by humans for thousands of years.

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Egg case (Chondrichthyes)

An egg case or egg capsule is the casing that surrounds the eggs of oviparous sharks, skates, and chimaeras.

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Egg cell

The egg cell, or ovum (plural ova), is the female reproductive cell (gamete) in oogamous organisms.

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Egg fossil

Egg fossils are the fossilized remains of eggs laid by ancient animals.

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Egg incubation

Incubation refers to the process by which certain oviparous (egg-laying) animals hatch their eggs; it also refers to the development of the embryo within the egg.

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Egg tooth

In some egg-laying animals, the egg tooth is a small, sharp, cranial protuberance used by offspring to break or tear through the egg's surface during hatching.

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Egg white

Egg white is the clear liquid (also called the albumen or the glair/glaire) contained within an egg.

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Eggshell

An eggshell is the outer covering of a hard-shelled egg and of some forms of eggs with soft outer coats.

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Elephant bird

Elephant birds are members of the extinct family Aepyornithidae.

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Embryo

An embryo is an early stage of development of a multicellular diploid eukaryotic organism.

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Emergence

In philosophy, systems theory, science, and art, emergence occurs when "the whole is greater than the sum of the parts," meaning the whole has properties its parts do not have.

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Emu

The emu (Dromaius novaehollandiae) is the second-largest living bird by height, after its ratite relative, the ostrich.

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Ernest William Goodpasture

Dr.

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Eurasian oystercatcher

The Eurasian oystercatcher (Haematopus ostralegus) also known as the common pied oystercatcher, or palaearctic oystercatcher, or (in Europe) just oystercatcher, is a wader in the oystercatcher bird family Haematopodidae.

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Exoskeleton

An exoskeleton (from Greek έξω, éxō "outer" and σκελετός, skeletós "skeleton") is the external skeleton that supports and protects an animal's body, in contrast to the internal skeleton (endoskeleton) of, for example, a human.

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Finch

The true finches are small to medium-sized passerine birds in the family Fringillidae.

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Fish

Fish are gill-bearing aquatic craniate animals that lack limbs with digits.

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Flamingo

Flamingos or flamingoes are a type of wading bird in the family Phoenicopteridae, the only bird family in the order Phoenicopteriformes.

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Flatworm

The flatworms, flat worms, Platyhelminthes, Plathelminthes, or platyhelminths (from the Greek πλατύ, platy, meaning "flat" and ἕλμινς (root: ἑλμινθ-), helminth-, meaning "worm") are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

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Food and drink prohibitions

Some people abstain from consuming various foods and beverages in conformity with various religious, cultural, legal or other societal prohibitions.

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Fox

Foxes are small-to-medium-sized, omnivorous mammals belonging to several genera of the family Canidae.

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Frog

A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (Ancient Greek ἀν-, without + οὐρά, tail).

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Gamete

A gamete (from Ancient Greek γαμετή gamete from gamein "to marry") is a haploid cell that fuses with another haploid cell during fertilization (conception) in organisms that sexually reproduce.

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Gametophyte

A gametophyte is one of the two alternating phases in the life cycle of plants and algae.

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Gene

In biology, a gene is a sequence of DNA or RNA that codes for a molecule that has a function.

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Gill

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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Goose

Geese are waterfowl of the family Anatidae.

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Grey foam-nest tree frog

The grey foam-nest tree frog or southern foam-nest tree frog (Chiromantis xerampelina) is a species of frog in the family Rhacophoridae.

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Grey partridge

The grey partridge (Perdix perdix), also known as the English partridge, Hungarian partridge, or hun, is a gamebird in the pheasant family Phasianidae of the order Galliformes, gallinaceous birds.

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Guineafowl

Guineafowl (sometimes called "pet speckled hen", or "original fowl" or guineahen) are birds of the family Numididae in the order Galliformes.

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Gull

Gulls or seagulls are seabirds of the family Laridae in the suborder Lari.

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Hagfish

Hagfish, the class '''Myxini''' (also known as Hyperotreti), are eel-shaped, slime-producing marine fish (occasionally called slime eels).

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Halakha

Halakha (הֲלָכָה,; also transliterated as halacha, halakhah, halachah or halocho) is the collective body of Jewish religious laws derived from the Written and Oral Torah.

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Hammerhead shark

The hammerhead sharks are a group of sharks in the family Sphyrnidae, so named for the unusual and distinctive structure of their heads, which are flattened and laterally extended into a "hammer" shape called a cephalofoil.

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Haugh unit

The Haugh unit is a measure of egg protein quality based on the height of its egg white (albumen).

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Hermann's tortoise

Hermann's tortoise (Testudo hermanni) is one of five tortoise species traditionally placed in the genus Testudo, the others being the marginated tortoise (T. marginata), Greek tortoise (T. graeca, or common tortoise), Russian tortoise (T. horsfieldii), and Kleinmann's tortoise (T. kleinmanni, or Egyptian tortoise).

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Herring

Herring are forage fish, mostly belonging to the family Clupeidae.

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Huffmanela hamo

Huffmanela hamo is a parasitic nematode.

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Hylidae

The Hylidae are a wide-ranging family of frogs commonly referred to as "tree frogs and their allies".

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Indian egg-eating snake

The Indian egg-eating snake or Indian egg-eater (Elachistodon westermanni) is a rare species of egg-eating snake found in the Indian subcontinent.

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Influenza

Influenza, commonly known as "the flu", is an infectious disease caused by an influenza virus.

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Insect

Insects or Insecta (from Latin insectum) are hexapod invertebrates and the largest group within the arthropod phylum.

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Invertebrate

Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord.

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Kashrut

Kashrut (also kashruth or kashrus) is a set of Jewish religious dietary laws.

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Kingdom (biology)

In biology, kingdom (Latin: regnum, plural regna) is the second highest taxonomic rank, just below domain.

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Kiwi

Kiwi or kiwis are flightless birds native to New Zealand, in the genus Apteryx and family Apterygidae.

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Lamprey

Lampreys (sometimes also called, inaccurately, lamprey eels) are an ancient lineage of jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata.

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Lancelet

The lancelets — also known as amphioxi (singular, amphioxus) consist of about 32 species of fish-like marine chordates in the order Amphioxiformes.

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Larva

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

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List of egg topics

This list of egg topics connects to numerous articles about eggs.

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Long-tailed weasel

The long-tailed weasel (Mustela frenata), also known as the bridled weasel or big stoat, is a species of mustelid distributed from southern Canada throughout all the United States and Mexico, southward through all of Central America and into northern South America.

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Mammal

Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.

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Marsupial

Marsupials are any members of the mammalian infraclass Marsupialia.

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Mayonnaise

Mayonnaise (also), informally mayo, is a thick cold sauce or dressing usually used in sandwiches and composed salads.

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Mink

Mink are dark-colored, semiaquatic, carnivorous mammals of the genera Neovison and Mustela, and part of the family Mustelidae which also includes weasels, otters and ferrets.

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Mollusca

Mollusca is a large phylum of invertebrate animals whose members are known as molluscs or mollusksThe formerly dominant spelling mollusk is still used in the U.S. — see the reasons given in Gary Rosenberg's.

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Monotreme

Monotremes are one of the three main groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria).

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Morula

A morula (Latin, morus: mulberry) is an early stage embryo consisting of cells (called blastomeres) in a solid ball contained within the zona pellucida.

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Multicellular organism

Multicellular organisms are organisms that consist of more than one cell, in contrast to unicellular organisms.

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Nematode

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

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New York City

The City of New York, often called New York City (NYC) or simply New York, is the most populous city in the United States.

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Nightjar

Nightjars are medium-sized nocturnal or crepuscular birds in the family Caprimulgidae, characterized by long wings, short legs and very short bills.

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Oology

Oology (or oölogy) is a branch of ornithology studying bird eggs, nests and breeding behaviour.

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Oophagy

Oophagy sometimes ovophagy, literally "egg eating", is the practice of embryos feeding on eggs produced by the ovary while still inside the mother's uterus.

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Opodiphthera eucalypti

Opodiphthera eucalypti, the emperor gum moth, is a species of moth in the family Saturniidae native to Australia.

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Osteichthyes

Osteichthyes, popularly referred to as the bony fish, is a diverse taxonomic group of fish that have skeletons primarily composed of bone tissue, as opposed to cartilage.

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Otter

Otters are carnivorous mammals in the subfamily Lutrinae.

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Oval

An oval (from Latin ovum, "egg") is a closed curve in a plane which "loosely" resembles the outline of an egg.

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Ovary

The ovary is an organ found in the female reproductive system that produces an ovum.

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Oviduct

In vertebrates, other than mammals, the passageway from the ovaries to the outside of the body is known as the oviduct.

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Oviparity

Oviparous animals are animals that lay eggs, with little or no other embryonic development within the mother.

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Ovoviviparity

Ovoviviparity, ovovivipary, or ovivipary, is a mode of reproduction in animals in which embryos that develop inside eggs remain in the mother's body until they are ready to hatch.

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Ovulation

Ovulation is the release of eggs from the ovaries.

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Parasitism

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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Passerine

A passerine is any bird of the order Passeriformes, which includes more than half of all bird species.

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Perivitelline space

The perivitelline space is the space between the zona pellucida and the cell membrane of an oocyte or fertilized ovum.

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Phylotype

In taxonomy, a phylotype is an observed similarity used to classify a group of organisms by their phenetic relationship.

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Placenta

The placenta is an organ that connects the developing fetus to the uterine wall to allow nutrient uptake, thermo-regulation, waste elimination, and gas exchange via the mother's blood supply; to fight against internal infection; and to produce hormones which support pregnancy.

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Placentalia

Placentalia ("Placentals") is one of the three extant subdivisions of the class of animals Mammalia; the other two are Monotremata and Marsupialia.

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Planula

A planula is the free-swimming, flattened, ciliated, bilaterally symmetric larval form of various cnidarian species.

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Platypus

The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.

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Primate

A primate is a mammal of the order Primates (Latin: "prime, first rank").

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Protoporphyrin IX

Protoporphyrin IX is an organic compound, which is one of the most common porphyrins in nature.

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Raccoon

The raccoon (or, Procyon lotor), sometimes spelled racoon, also known as the common raccoon, North American raccoon, or northern raccoon, is a medium-sized mammal native to North America.

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Reef shark

Several species of reef-associated sharks are known by the common name reef sharks The species are.

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Reptile

Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.

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Rickettsia

Rickettsia is a genus of nonmotile, Gram-negative, nonspore-forming, highly pleomorphic bacteria that can be present as cocci (0.1 μm in diameter), rods (1–4 μm long), or thread-like (10 μm long).

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Rocky Mountain spotted fever

Rocky Mountain spotted fever (RMSF), also known as blue disease, is the most lethal and most frequently reported rickettsial illness in the United States.

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Salamander

Salamanders are a group of amphibians typically characterized by a lizard-like appearance, with slender bodies, blunt snouts, short limbs projecting at right angles to the body, and the presence of a tail in both larvae and adults.

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Sandgrouse

Sandgrouse is the common name for Pteroclidae, a family of sixteen species of bird, members of the order Pterocliformes.

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Schistosoma mekongi

Schistosoma mekongi is a species of trematodes, also known as flukes.

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Scorpion

Scorpions are predatory arachnids of the order Scorpiones.

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SeaWorld

SeaWorld is a United States chain of marine mammal parks, oceanariums, animal theme parks, and rehabilitation centers owned by SeaWorld Entertainment (one park will be owned and operated by Miral under a license).

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Seed

A seed is an embryonic plant enclosed in a protective outer covering.

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Senegal parrot

The Senegal parrot (Poicephalus senegalus) is a Poicephalus parrot which is a resident breeder across a wide range of west Africa.

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Shark

Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head.

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Skate (fish)

Skates are cartilaginous fish belonging to the family Rajidae in the superorder Batoidea of rays.

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Skunk

Skunks are North and South American mammals in the family Mephitidae.

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Smallpox

Smallpox was an infectious disease caused by one of two virus variants, Variola major and Variola minor.

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Snail

Snail is a common name loosely applied to shelled gastropods.

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Snake

Snakes are elongated, legless, carnivorous reptiles of the suborder Serpentes.

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Southern cassowary

The southern cassowary (Casuarius casuarius) also known as double-wattled cassowary, Australian cassowary or two-wattled cassowary, is a large flightless black bird.

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Spawn (biology)

Spawn is the eggs and sperm released or deposited into water by aquatic animals.

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Sperm

Sperm is the male reproductive cell and is derived from the Greek word (σπέρμα) sperma (meaning "seed").

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Spermatophyte

The spermatophytes, also known as phanerogams or phenogamae, comprise those plants that produce seeds, hence the alternative name seed plants.

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Spider

Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom.

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Sponge

Sponges, the members of the phylum Porifera (meaning "pore bearer"), are a basal Metazoa clade as sister of the Diploblasts.

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Spore

In biology, a spore is a unit of sexual or asexual reproduction that may be adapted for dispersal and for survival, often for extended periods of time, in unfavourable conditions.

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Stoat

The stoat (Mustela erminea), also known as the short-tailed weasel or simply the weasel in Ireland where the least weasel does not occur, is a mammal of the genus Mustela of the family Mustelidae native to Eurasia and North America, distinguished from the least weasel by its larger size and longer tail with a prominent black tip.

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Tadpole

A tadpole (also called a pollywog) is the larval stage in the life cycle of an amphibian, particularly that of a frog or toad.

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The Atlantic

The Atlantic is an American magazine and multi-platform publisher, founded in 1857 as The Atlantic Monthly in Boston, Massachusetts.

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Theria

Theria (Greek: θηρίον, wild beast) is a subclass of mammals amongst the Theriiformes (the sister taxa to Yinotheria).

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Thierry Lodé

Thierry Lodé (born 1956 in Tarbes) is a French biologist and professor of evolutionary ecology in a CNRS lab at the University of Rennes 1.

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Tinamou

Tinamous form an order of birds (Tinamiformes), comprising a single family (Tinamidae) with two distinct subfamilies, containing 47 species found in Mexico, Central America, and South America.

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Trophic egg

A trophic egg, in most species that produce them, usually is an unfertilised egg because its function is not reproduction but nutrition; in essence it serves as food for offspring hatched from viable eggs.

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Typhus

Typhus, also known as typhus fever, is a group of infectious diseases that include epidemic typhus, scrub typhus and murine typhus.

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Umbilical cord

In placental mammals, the umbilical cord (also called the navel string, birth cord or funiculus umbilicalis) is a conduit between the developing embryo or fetus and the placenta.

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Uterus

The uterus (from Latin "uterus", plural uteri) or womb is a major female hormone-responsive secondary sex organ of the reproductive system in humans and most other mammals.

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Vanderbilt University

Vanderbilt University (informally Vandy) is a private research university in Nashville, Tennessee.

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Vertebrate

Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones).

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Virus

A virus is a small infectious agent that replicates only inside the living cells of other organisms.

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Vitelline membrane

The vitelline membrane or vitelline envelope is a structure surrounding the outer surface of the plasma membrane of an ovum (the oolemma) or, in some animals (e.g., birds), the extracellular yolk and the oolemma.

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Viviparity

Among animals, viviparity is development of the embryo inside the body of the parent, eventually leading to live birth, as opposed to reproduction by laying eggs that complete their incubation outside the parental body.

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Whale shark

The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known extant fish species.

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Whooping crane

The whooping crane (Grus americana), the tallest North American bird, is an endangered crane species named for its whooping sound.

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Wildlife and Countryside Act 1981

The Wildlife and Countryside Act 1981 is an Act of Parliament in the United Kingdom implemented to comply with European Council Directive 2009/147/EC on the conservation of wild birds.

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Yellow fever

Yellow fever is a viral disease of typically short duration.

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Yolk

Among animals which produce one, the yolk (also known as the vitellus) is the nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo.

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Yolk sac

The yolk sac is a membranous sac attached to an embryo, formed by cells of the hypoblast adjacent to the embryonic disk.

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ZW sex-determination system

The ZW sex-determination system is a chromosomal system that determines the sex of offspring in birds, some fish and crustaceans such as the giant river prawn, some insects (including butterflies and moths), and some reptiles, including Komodo dragons.

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Zygote

A zygote (from Greek ζυγωτός zygōtos "joined" or "yoked", from ζυγοῦν zygoun "to join" or "to yoke") is a eukaryotic cell formed by a fertilization event between two gametes.

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Egg (biology), Eyren, Fish egg, Infertile egg, Infertile eggs, Insect egg, Macrolecithal, Mammalian eggs, The Biology of Eggs, The biology of eggs, Wind eggs, Wind-egg, Wind-eggs, Windeggs.

References

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

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