Monkey experiments hint at a "motivation brake" pathway between two brain regions. Manipulating it may lead to new treatments ...

Same-sex sexual behaviour has been recorded in around 1,500 species, from insects and starfish to birds and mammals. Yet sex ...

In humans, personality similarity between partners can lead to better compatibility and well-being. Is the same true for ...

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