Nonhuman primates like bonobos and chimpanzees might engage in same-sex sexual activities to strengthen bonds, particularly ...

Discover how recent research challenges traditional views on evolution by revealing the crucial survival functions of same-sex behaviour in nonhuman primates.

Twins have been rare in human history and for that reason can seem special. Many cultures associate twins with health and vitality, while others see them as a philosophical reminder of the duality of ...