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 ...

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 ...

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 ...