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evolution

(Encyclopedia)CE5 Plant and animal evolution [Modified from Alfred Gunderson in Brooklyn Botanic Garden Leaflets, Ser. 18, No. 4 (1930); used by permission.] evolution, concept that embodies the belief that ex...

human evolution

(Encyclopedia)human evolution, theory of the origins of the human species, Homo sapiens. Modern understanding of human origins is derived largely from the findings of paleontology, anthropology, and genetics, and i...

stellar evolution

(Encyclopedia)CE5 The above Hertzsprung-Russell (H-R) diagram shows the track of stellar evolution for a typical star. After spending much of its life evolving toward or along the main sequence, the star becomes...

Simpson, George Gaylord

(Encyclopedia)Simpson, George Gaylord, 1902–84, American paleontologist and zoologist, b. Chicago, Ph.D. Yale, 1926. He became assistant curator of vertebrate paleontology at the American Museum of Natural Histor...

Dobzhansky, Theodosius

(Encyclopedia)Dobzhansky, Theodosius dôbzhänˈskē [key], 1900–1975, American geneticist, b. Russia, grad. Univ. of Kiev, 1921. He emigrated to the United States in 1927 and was naturalized in 1937. Dobzhansky ...

creationism

(Encyclopedia)creationism or creation science, belief in the biblical account of the creation of the world as described in Genesis, a characteristic especially of fundamentalist Protestantism (see fundamentalism). ...

Spencer, Herbert

(Encyclopedia)Spencer, Herbert, 1820–1903, English philosopher, b. Derby. In 1848 he moved to London, where he was an editor at The Economist and wrote his first major book, Social Statics (1851), which tried to ...

Hobhouse, Leonard Trelawney

(Encyclopedia)Hobhouse, Leonard Trelawney, 1864–1929, English philosopher, sociologist, and journalist. He taught at Oxford and at the Univ. of London. Hobhouse sought to show with evidence from anthropology and ...

Morgan, Conwy Lloyd

(Encyclopedia)Morgan, Conwy Lloyd, 1852–1936, English psychologist. Professor of zoology at University College, Bristol (1887–1909), he served as first vice chancellor of the Univ. of Bristol (1909–10) and wa...

Huxley, Thomas Henry

(Encyclopedia)Huxley, Thomas Henry, 1825–95, English biologist and educator, grad. Charing Cross Hospital, 1845. Huxley gave up his own biological research to become an influential scientific publicist and was th...