Many of these can be asked either way round. For example: "What type of food forms the staple diet of a nucivorous animal?"
| An alate creature is one that has |
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Wings |
| An excaudate or anourous animal is one that has no |
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Tail |
| An apodous animal is one that has no |
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Feet |
| A catadromous animal is one that has |
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Migrates down rivers to the sea to breed |
| A diurnal animal is one that |
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Active during the daytime |
| An edentate animal is one that has no |
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Teeth |
| A glabrous animal is one that has no |
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Hair or fur |
| Common term for a homeothermic animal (cf. polikothermic) |
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Warm blooded |
| An oviparous animal is one that |
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Lay eggs |
| A palmiped is an animal that has |
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Webbed feet |
| Passerine birds are so called because their feet are specially adapted for |
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Perching |
| A pinniped is a |
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Mammal with flippers |
| A plantigrade animal is one that |
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Walks on flats of feet |
| Common term for a polikothermic animal (cf. homeothermic) |
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Cold–blooded |
| An ungulate is an animal that has |
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Hooves |
| A viviparous animal is one that is |
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Live young |
| Sleeping through the summer (the opposite of hibernation) |
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Aestivation |
| Person or animal with congenital lack of pigment |
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Albino |
| Biliverdin and bilirubin are (respectively) the yellow–orange and green pigments in
|
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Bile |
| Nidification (particularly of birds) |
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Building nests |
| Shell of a tortoise, crab or lobster (upper part – see also Plastron) |
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Carapace |
| Species able to breed with each other (from the Greek for common) |
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Cenospecies |
| Forms the hard parts of joint–footed animals, and insect skeletons |
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Chitin (kye–tin) |
| The single orifice that serves as the only opening for the digestive, reproductive, and urinary tracts in
amphibians, reptiles, birds, and a few mammals (the Latin word for a sewer) |
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Cloaca |
| Common name for albumen |
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Egg white |
| Any gland that secretes hormones into the bloodstream |
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Endocrine gland |
| The nictitating membrane, or haw (present in some reptiles, birds, sharks, and mammals) is also known as the third |
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Eyelid |
| The joint in the hind leg of a quadruped, between the knee and the fetlock – the angle of which points
backwards |
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Hock (or gambrel) |
| Animal that has no backbone |
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Invertebrate |
| Tough, fibrous protein: the main constituent of rhino horns (and human hair) |
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Keratin |
| Sugar found in milk |
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Lactose |
| Mammal where the female carries the young in a pouch |
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Marsupial |
| The largest cells in the bodies of most animal species |
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Ova |
| Scents secreted by animals which act like hormones on others |
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Pheromones |
| Lower part of the shell of a tortoise or turtle – also a chest protector in fencing (the sport!) |
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Plastron |
| Slowing down of metabolic rates in cold–blooded animals for part of the day or night, to save energy |
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Torpor |
| Furcula (from the Latin for "little fork") – a bone in birds' skeletons |
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Wishbone |
| Disease caught by man from animals (e.g. ringworm, rabies) |
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Zoonosis |
| Animal that looks like a plant (e.g. sea anemone) |
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Zoophyte |