One of the world's rarest whale species is having more babies this year than in some recent seasons, but experts say many ...
Bonds between same-sex individuals help apes and monkeys to manage conflict and strengthen alliances, especially in dry ...
A new study by researchers at Imperial College London and published on Monday in Nature Ecology & Evolution could help shed ...
By a woman’s mid-30s, more than half of her eggs contain too many or too few chromosomes — a leading cause of miscarriage, ...
Some 60 primate species, including baboons, chimpanzees and vervet monkeys, express homosexuality, according to a new study ...
A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...