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23 relations: Aposematism, Bivalvia, Dimetrodon, Echidna, Eutriconodonta, Flatworm, Gastropoda, Hedgehog, Invertebrate, Keratin, Mollusc shell, Monotreme, Penile spines, Pitar lupanaria, Scorpaenidae, Sea urchin, Sexual intercourse, Spinolestes, Spiny mouse, Stingray, Tenrec, Venom, Vertebrate.
Aposematism
Aposematism (from Greek ἀπό apo away, σῆμα sema sign) is a term coined by Edward Bagnall PoultonPoulton, 1890.
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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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Dimetrodon
Dimetrodon (or, meaning "two measures of teeth") is an extinct genus of synapsids that lived during the Cisuralian (Early Permian), around 295–272 million years ago (Ma).
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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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Eutriconodonta
Eutriconodonta is an order of early mammals.
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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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Gastropoda
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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Hedgehog
A hedgehog is any of the spiny mammals of the subfamily Erinaceinae, in the eulipotyphlan family Erinaceidae.
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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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Keratin
Keratin is one of a family of fibrous structural proteins.
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Mollusc shell
The mollusc (or molluskOften spelled mollusk shell in the USA; the spelling "mollusc" are preferred by) shell is typically a calcareous exoskeleton which encloses, supports and protects the soft parts of an animal in the phylum Mollusca, which includes snails, clams, tusk shells, and several other classes.
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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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Penile spines
Many mammalian species have developed keratinized penile spines along the glans and/or shaft, which may be involved in sexual selection.
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Pitar lupanaria
Pitar (Hysteroconcha) lupanaria is a species of Venus clam, a marine bivalve mollusc in the family Veneridae, the Venus clams.
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Scorpaenidae
Scorpaenidae (also known as the scorpionfish) are a family of mostly marine fish that includes many of the world's most venomous species.
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Sea urchin
Sea urchins or urchins are typically spiny, globular animals, echinoderms in the class Echinoidea.
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Sexual intercourse
Sexual intercourse (or coitus or copulation) is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure, reproduction, or both.
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Spinolestes
Spinolestes is an extinct mammal genus from the Early Cretaceous of Spain.
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Spiny mouse
The term spiny mouse refers to any species of rodent within the genus Acomys.
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Stingray
Stingrays are a group of sea rays, which are cartilaginous fish related to sharks.
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Tenrec
A tenrec is any species of mammal within the family Tenrecidae, found on Madagascar and in parts of the African mainland.
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Venom
Venomous Animals Venom is a form of toxin secreted by an animal for the purpose of causing harm to another.
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Vertebrate
Vertebrates comprise all species of animals within the subphylum Vertebrata (chordates with backbones).
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References
[1] https://en.wikipedia.org/wiki/Spine_(zoology)
