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whale shark

(Encyclopedia) whale shark, large, plankton-eating shark, Rhincodon typus, found in all tropical seas of the world. Whale sharks are the largest fish in the world. A female typically reaches about 46…

cassowary

(Encyclopedia) cassowarycassowarykăsˈəwârˌē [key], common name for a flightless, swift-running, pugnacious forest bird of Australia and the Malay Archipelago, smaller than the ostrich and emu. The…

Hermaphroditus

(Encyclopedia) HermaphroditusHermaphroditushərmăfrədīˈtəs [key], in Greek mythology, beautiful son of Hermes and Aphrodite. He scorned the nymph Salmacis, who prayed that they might never be…

undine

(Encyclopedia) undineundineəndēnˈ, ŭnˈdēn [key], in folklore, female water sprite who could acquire a soul by marrying a human being. If, however, her lover proved unfaithful, she had to return to…

fiddler crab

(Encyclopedia) fiddler crab, common name for small, amphibious crabs belonging to the genus Uca. They are characterized by a rectangular carapace (shell) and a narrow abdomen, which is flexed under…

gonadotropic hormone

(Encyclopedia) gonadotropic hormonegonadotropic hormonegōˌnădətrŏpˈĭk [key] or gonadotropin, any one of three glycoprotein (see protein) hormones released by either the anterior pituitary gland or…

dioecious plant

(Encyclopedia) dioecious plantdioecious plantdīēˈshəs [key], plant in which the male and female reproductive structures are found in different individuals, as distinct from a monoecious plant (see…

Hertwig, Oscar

(Encyclopedia) Hertwig, OscarHertwig, Oscarôsˈkär hĕrtˈvĭkh [key], 1849–1922, German embryologist. He studied medicine with Haeckel and Gegenbaur. In 1875 he established the fact that fertilization…

Haywood, Eliza (Fowler)

(Encyclopedia) Haywood, Eliza (Fowler), 1693?–1756, English author. Separated from her husband, she supported herself and her two children by writing plays and novels. Two of her books, Utopia (1725…

Mizoguchi, Kenji

(Encyclopedia) Mizoguchi, Kenji, 1898–1956, Japanese film director. Mizoguchi made more than 80 features, but some 50 from the silent film and early sound years have not survived. He is particularly…