(Encyclopedia) neuron, specialized cell in animals that, as a unit of the nervous system, carries information by receiving and transmitting electrical impulses.
(Encyclopedia) fur, hairy covering of an animal, especially the skins of animals that have thick, soft, close-growing hair next to the skin itself and coarser protective hair above it. The underhair…
(Encyclopedia) decapoddecapoddĕkˈəpŏdˌ [key] (Gr.,=10 feet), name for invertebrate animals of the crustacean order Decapoda (phylum Arthropoda) including the crabs, the lobsters and crayfish, and the…
(Encyclopedia) horn, in zoology, one of a pair of structures projecting from the head of a hoofed animal, used chiefly as a weapon. In cattle, sheep, Old World antelopes, and related animals the…
(Encyclopedia) notochordnotochordnōˈtəkôrdˌ [key], in biology, supporting rod running most of the length of animals of the phylum Chordata and present at varying times in the life cycle. Composed of…
(Encyclopedia) Snyders, FransSnyders, Fransfräns snīˈdərs [key], 1579–1657, most celebrated Flemish still-life and animal painter, b. Antwerp. He studied with Bruegel, the younger, and Hendrik van…
(Encyclopedia) Q fever, disease caused by Coxiella burnetii, a small, Gram-negative bacterium. The bacterium infects livestock (cattle, goats, and sheep) and other domesticated animals, and is found…
(Encyclopedia) adaptation, in biology, has several meanings. It can mean the adjustment of living matter to environmental conditions and to other living things either in an organism's lifetime (…
