Parental investment theory
Topic
Parental investment theory, formulated by Robert Trivers in 1972, is a branch of evolutionary biology and evolutionary psychology that analyzes any parental expenditure of time, energy, or resources that benefits an offspring. The theory predicts that the sex that invests more in its offspring will be more selective when choosing a mate, while the sex that invests less will compete more intensely for access to mates.
2 episodes featuring Parental investment theory
Modern Wisdom
Evolutionary experts debunk the biggest myths of modern dating apps
Understanding the evolutionary drivers behind attraction helps separate online dating anxiety from the reality of human mating behavior.
Aug 6, 2026 · 2h 7m
Modern Wisdom
Evolutionary psychologist warns denying innate sex differences harms societal progress
Understanding the evolutionary roots of human behavior is essential for creating effective social policies that respect individual choices without denying biological reality.
Jul 6, 2026 · 2h 33m