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 ...

A new scientific review challenges the widespread idea that certain physical features in women serve as biological signals of high fertility. The comprehensive analysis suggests that characteristics ...

The animal kingdom is a wonderful and wacky place filled with creatures with all sorts of unique abilities, ranging from walking on water, holding their breath miles beneath the ocean and even living ...

Researchers who created 'family trees' for nearly 10,000 fish found that first-generation, wild-born descendants of hatchery-origin Chinook salmon in an Oregon river show improved fitness. Researchers ...