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14 Topic Pages Found in Animals & Veterinary Medicine and starting with the letter E
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Open Eagle

Any of many large, heavy-beaked, big-footed birds of prey belonging to the family Accipitridae, found worldwide. Eagles are generally larger and more


terrestrial, cylindrical segmented worm of the class Oligochaeta. There are 2,200 earthworm species, found all over the world except in arid and

Open Echidna

( ĭkĭd'nə ) or spiny anteater, animal of the order Monotremata, the egg-laying mammals. A short-legged, grayish brown animal, the echidna is covered

Open Echinodermata

( əkì´´nōdûr'mətə ) [Gr.,=spiny skin], phylum of exclusively marine bottom-dwelling invertebrates having external skeletons of calcareous plates just

Open Echolocation

Method used by certain animals, notably bats, whales, and dolphins, to detect the positions of objects by using sound. The animal emits a stream of


common name for any fish in the order Anguilliformes, and characterized by a long snakelike body covered with minute scales embedded in the skin. Eels

Open Elephants

Large grazing mammal with thick, grey wrinkled skin, large ears, a long flexible trunk, and huge curving tusks. There are fingerlike projections at

elephant seal

or sea elephant, a true seal of the genus Mirounga. It is the largest of the fin-footed mammals, or pinnipeds, exceeding the walrus in size. There is


( wŏp'ĭtē ), large North American deer, Cervus canadensis, closely related to the Old World red deer. It is commonly called elk in America although

Open Endangered species
Endangered species

any plant or animal species whose ability to survive and reproduce has been jeopardized by human activities. In 1999 the U.S. government, in