Robert Lynch at The Laughing Ape:
Robert Trivers, who died on March 12, 2026, was arguably the most important evolutionary theorist since Darwin. He had a rare gift for seeing through the messy clutter of life and revealing the underlying logic beneath it. E. O. Wilson called him “one of the most influential and consistently correct theoretical evolutionary biologists of our time.” Steven Pinker described him as “one of the great thinkers in the history of Western thought.”
I was Robert’s graduate student at Rutgers from 2006 to 2014. Long before I knew him personally, however, he had already established himself as one of the most original and insightful scientists of the twentieth century. In an astonishing series of papers in the early 1970s, he changed forever our understanding of evolution and social behavior.
The first, published while he was still a graduate student at Harvard, confronted one of the deepest problems in evolutionary theory: how can natural selection favor cooperation between non-relatives? In The Evolution of Reciprocal Altruism Trivers proposed that cooperation could evolve when the same individuals interacted repeatedly, making it advantageous to help those who were likely to help in return while avoiding cheaters who took benefits without reciprocating — i.e.“you scratch my back, I’ll scratch yours.”
More here.
Enjoying the content on 3QD? Help keep us going by donating now.