Konrad Zacharias Lorenz

Lorenz, Konrad Zacharias (1903–89), Austrian zoologist, founder of ethology, the study of animal behavior. He is best known for his studies of bird behavior and of human and animal aggression. His books include King Solomon's Ring (1952) and On Aggression (1966). He shared the 1973 Nobel Prize for physiology or medicine with Karl von Frisch and Nikolaas Tinbergen.

See also: Ethology.