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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...

Morgan, Lewis Henry

(Encyclopedia)Morgan, Lewis Henry, 1818–81, American anthropologist, b. Aurora, N.Y., grad. Union College, Schenectady, 1840. Practicing as a lawyer, he became interested in the Native Americans of his locality, ...

Lessing, Gotthold Ephraim

(Encyclopedia)Lessing, Gotthold Ephraim gôtˈhôlt āˈfräĭm [key], 1729–81, German philosopher, dramatist, and critic, one of the most influential figures of the Enlightenment. He was connected with the theat...

Cro-Magnon man

(Encyclopedia)Cro-Magnon man krō-măgˈnən, –mănˈyən [key], an early Homo sapiens (the species to which modern humans belong) that lived about 40,000 years ago. Skeletal remains and associated artifacts of t...

Scopes trial

(Encyclopedia)Scopes trial, Tennessee legal case involving the teaching of evolution in public schools. A statute was passed (Mar., 1925) in Tennessee that prohibited the teaching in public schools of theories cont...

Olduvai Gorge

(Encyclopedia)Olduvai Gorge ōlˈdəwāˌ, –vāˌ [key], a feature of the E African Rift Valley in Tanzania. Erosional processes have exposed geological strata in the gorge dating to the lower Pleistocene epoch, ...

cave

(Encyclopedia)cave, a cavity in the earth's surface usually large enough for a person to enter. Caves may be formed by the chemical and mechanical action of a stream upon soluble or soft rock, of rainwater seeping ...

nonlinear dynamics

(Encyclopedia)nonlinear dynamics, study of systems governed by equations in which a small change in one variable can induce a large systematic change; the discipline is more popularly known as chaos (see chaos theo...

culture

(Encyclopedia)culture, in anthropology, the integrated system of socially acquired values, beliefs, and rules of conduct which delimit the range of accepted behaviors in any given society. Cultural differences dist...

de Vries, Hugo

(Encyclopedia)de Vries, Hugo hüˈgō də vrēs [key], 1848–1935, Dutch botanist. He opened a new approach to the study of evolution by using the experimental method to investigate the processes of evolution. His...