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Gliding birds tend to have long and thin wings, but seagulls seem to have a trick that lets them soar on short, wider wings

New research adds to the debate about when humans began cooking with fire

Some female cichlids counter the stress of protecting their offspring by munching on them, study suggests

Some female cichlid fish keep their offspring in their mouth for protection, but they commonly eat up to half of their brood

A database of photos taken from 1886 to 2019 reveals that horn size has gradually decreased in five species of rhinoceros, probably due to poaching

Most vaccines are designed to provoke a quick immune response, but a longer one might allow the most effective immune cells to stick around in the bone marrow

A young child found in an unmarked coffin in an Austrian crypt was exceptionally well preserved, and his bones and organs show signs of rickets and pneumonia

Aging mules and donkeys need to be managed just as carefully as horses. Here's what you need to know.

New research provides evidence cats see their person as “more than just a food provider”

Unlike dogs, which often enthusiastically respond to everyone, cats choosily respond only to their owner’s voice with an increase in certain behaviours