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Austrian ethologist Konrad Zacharias Lorenz (1903-1989), called the founder of ethology, the comparative study of behavior in man and other animals. It was for his pioneering work in this field that Lorenz shared the 1973 Nobel Prize for physiology or medicine with the animal behaviorists Karl von Frisch and Nikolaas Tinbergen.

Author of On Aggression (1963), King Solomon's Ring (1949), Man Meets Dog (1950), Studies in Animal and Human Behavior (1965), and The Waning of Humaneness (1981).