Love is a wondrous state, deep, tender, and rewarding. Because of its intimate and personal nature it is regarded by some as an improper topic for experimental research.

Harry Harlow

Psychologists

Harry Harlow

U.S. psychologist (1905-81). His 1958 surrogate-mother work showed infant monkeys prefer contact comfort to feeding, grounding Bowlby's attachment theory. Later isolation studies helped spark U.S. animal liberation.

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