Overly risky or self-destructive behavior can be observed in any generation. There need not be a gene for it—random mutations ...

An curved arrow pointing right. In the early '90s, anthropologist Robin Dunbar proposed that a human being has the capacity to have up to 150 meaningful relationships. Dunbar did a study of human ...

In one chapter, Robin Dunbar (2025 ... conquered a continent only to then vanish into nothingness. Dunbar argues that evolution favors such marginalized risk-takers. Enough of them, he claims ...