Robert Trivers

Verified Timeline

Lore & Background

Growing up in a diplomatic household, he attended schools in Berlin, Copenhagen, and Washington, D.C., before studying American history at Harvard. He was open about his bipolar disorder, which was first misdiagnosed as schizophrenia during a manic episode at Harvard, leading to hospitalization and treatment with first-generation antipsychotics. During recovery, he developed an interest in psychology and social biology, though he initially applied to law school at Harvard and Yale and was rejected from both, partly due to his mental health. They became close friends; Newton was godfather to one of Trivers's daughters. Trivers was "ex-communicated" from the Panthers by Newton in 1982 "for his own good." He spent about 13 years living in Jamaica, was married twice to Jamaican women, and had five children.

Reader's Guide

Robert Trivers's significance lies in his formulation of core evolutionary theories that explain social behavior, cooperation, and conflict. His 1971 paper on reciprocal altruism provided a mechanism for the evolution of cooperation among non-relatives, addressing a key challenge to Darwinian theory by showing how natural selection could favor cheater detection. His 1972 work on parental investment offered a unifying framework for sexual selection, linking sex differences across species to the relative investment each parent makes in offspring. This insight, inspired by observing pigeons and reading Bateman's work, remains central to evolutionary biology. Despite these controversies, his theoretical contributions continue to influence evolutionary biology, psychology, and anthropology.

Did You Know?

• Trivers was diagnosed with bipolar disorder, initially misdiagnosed as schizophrenia during a manic episode at Harvard.
• Trivers joined the Black Panther Party in 1979 and was ex-communicated by Newton in 1982.
• He accepted payments from Jeffrey Epstein in the 2010s and defended Epstein's reputation after his conviction.