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rhinoceros

(Encyclopedia)rhinoceros, massive hoofed mammal of Africa, India, and SE Asia, characterized by a snout with one or two horns. The rhinoceros family, along with the horse and tapir families, forms the order of odd-...

endangered species

(Encyclopedia)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 accordance with the U.S. Endangered Spe...

Convention on International Trade in Endangered Species of Wild Fauna and Flora

(Encyclopedia)Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), international agreement that aims to ensure that trade in specimens of wild animals and plants does not threate...

species

(Encyclopedia)species, in biology, a category of classification, the original and still the basic unit in the demarcation of plant and animal types. The species marks the boundary between populations of organisms r...

ceratotherium

(Encyclopedia)ceratotherium: see rhinoceros.

hoof

(Encyclopedia)hoof, horny epidermal casing at the end of the digits of an ungulate (hoofed) mammal. In the even-toed ungulates, such as swine, deer, and cattle, the hoof is cloven; in the odd-toed ungulates, such a...

Leidy, Joseph

(Encyclopedia)Leidy, Joseph līˈdē [key], 1823–91, American scientist, b. Philadelphia, grad. Univ. of Pennsylvania medical school. From 1853 he taught anatomy at his alma mater. He was also professor of natura...

Serengeti National Park

(Encyclopedia)Serengeti National Park, c.5,700 sq mi (14,800 sq km), NE Tanzania, est. 1941. The internationally famous park attracts large numbers of tourists to see the world's largest concentrations of wildebees...

baluchitherium

(Encyclopedia)baluchitherium bəlo͞ochĭthērˈēəm [key], extinct primitive rhinoceros, belonging to the genus Baluchitherium, of the Oligocene epoch, fossilized bones of which were found in central Asia. It had...

Mostel, Zero

(Encyclopedia)Mostel, Zero mŏsˌtĕlˈ [key], 1915–77, American actor, b. New York City as Samuel Joel Mostel. Mostel made his Broadway debut in Keep 'Em Laughing (1942). A comic actor with an expressive face, h...