Animals have personalities too—and some animal couples raise their young better based on how well their personalities match. Greylag geese, which mate in long-term monogamous relationships, have ...

Juvenile social play predicts adult reproductive success in male bottlenose dolphins, a new study has found. Juvenile social play predicts adult reproductive success in male bottlenose dolphins, a new ...

Researchers uncover how specific genetic and cardiovascular traits give Tibetan women an edge in surviving and thriving at high altitudes, linking better oxygen delivery to more successful pregnancies ...

Exposure to maternal stress during pre-natal development has negative impacts, so why doesn't natural selection work to block it? European starling sons exposed to the stress hormone corticosterone ...

A study of more than 100 greylag geese found individuals were consistently different in personality traits, ranging from boldness, aggressiveness, sociability to other behavioural traits. Birds of a ...