(Encyclopedia) Dujardin, FélixDujardin, Félixfālēksˈ düzhärdăNˈ [key], 1801–60, French zoologist. He did valuable research on bacteria and on the Infusoria. In 1835 he described protoplasm in…
(Encyclopedia) Elk Island National Park, 75 sq mi (194 sq km), central Alta., Canada, near Edmonton; est. 1913. It occupies a wooded rolling region in the midst of level farmland. The park is Canada'…
(Encyclopedia) Marc, FranzMarc, Franzfränts märk [key], 1880–1916, German painter. Influenced by August Macke, he developed a rich, chromatic symbolism. He depicted a mystical world of animals,…
(Encyclopedia) kosher [Heb.,=proper, i.e., fit for use], in Judaism, term used in rabbinic literature to mean what is ritually correct, but most widely applied to food that is in accordance with…
(Encyclopedia) Ditmars, Raymond LeeDitmars, Raymond Leedĭtˈmärz [key], 1876–1942, American naturalist and author, b. Newark, N.J., grad. Barnard Military Academy, 1891. His early skill in preparing…
(Encyclopedia) American Museum of Natural History, incorporated in New York City in 1869 to promote the study of natural science and related subjects. Buildings on its present site facing Central…
(Encyclopedia) Eocene epochEocene epochēˈəsēnˌ [key], second epoch of the Tertiary period in the Cenozoic era of geologic time, from approximately 54.9 to 38 million years ago. The Eocene in North…
(Encyclopedia) rabiesrabiesrāˈbēz, răˈ– [key] or hydrophobiarabieshīˌdrəfōˈbēə [key], acute viral infection of the central nervous system in dogs, bats, foxes, raccoons, skunks, and other animals,…
(Encyclopedia) ApatosaurusApatosaurusăpˌətəsôrˈəs, āˌpătˌə– [key], [Gr.,=deceptive lizard], quadruped saurischian dinosaur, estimated to be from 70 to 90 ft (21 to 27 m) in length and to weigh up to…
(Encyclopedia) aquarium, name for any supervised exhibit of aquatic animals and plants. Aquariums are known to have been constructed in ancient Rome, Egypt, and Asia. Goldfish have been bred in China…
