Female and male primates often form close bonds, but not purely out of affection. Close relationships usually evolve when there is a clear benefit for both parties, with protection and reproductive ...

Humans are far closer to meerkats and beavers for levels of exclusive mating than we are to most of our primate cousins, according to a new University of Cambridge study that includes a table ranking ...

Biological anthropologists and evolutionary psychologists commonly take it for granted that human monogamy has a biological basis. Desmond Morris was an influential early advocate. His 1967 ...

“Spanking the monkey”, “petting the poodle” and “pulling the python”: all fitting euphemisms for masturbation, and closer to the truth than you might imagine. Self-pleasure is common across the animal ...

New study finds that large group size and mating systems where males have multiple mates drove evolution of deeper male voices in primates, including humans UNIVERSITY PARK, Pa. — Deeper male voices ...

Monogamy : past and present / Ulrich H. Reichard -- Evolution of monogamy : mating relationships, parental care and sexual selection / Anders Pape Møller -- Mate guarding and the evolution of social ...