Scientists analyzed the urine of wild chimpanzees who'd feasted on fallen fruit to see how much alcohol they consumed from the fermented sugars.

A new study finds that chimpanzee babies learn vocal and visual communication patterns from their mothers. The findings may shed light on the way human babies learn from those close to them.

When female gorillas leave one social group and join another, they tend to seek out groups with other females that they've lived with in the past, showing the power of long-term relationships.

A new study from Oxford University finds that a common European songbird sometimes divorces its partner between breeding seasons.

Young, male capuchin monkeys have started kidnapping the babies of nearby howler monkeys. Why? Maybe boredom.

A new study suggests iguanas reached Fiji by rafting around 5,000 miles from North America.

New research suggests mice may exhibit revival-like behaviors to help unconscious mice recover faster.

Nest-building isn’t just instinct. Birds can learn from others, letting groups within one species develop their own distinctive nest-building traditions.

A study finds that carrion crows can be taught to count and make vocalizations that indicate the number counted, much in the same way that human toddlers do.

Rhesus macaques on Cayo Santiago are known for being intolerant, hierarchical and aggressive. After 2017's Hurricane Maria destroyed their home, the monkeys' society underwent surprising changes.

Forget names like "Dumbo"—wild elephants appear to have their own unique names that other elephants use while talking to them in low rumbles.

When an NPR reporter heard a startling loud metallic noise in her house, she was about to get an interesting lesson in animal behavior.

Some otters rely on tools to bust open hard-shelled prey items like snails, and a new study suggests this tool use is helping them to survive as their favorite, easier-to-eat foods disappear.

Weliton Menário Costa's award-winning music video showcases his research on kangaroo personality and behavior — and offers a celebration of human diversity, too.

After studying various species earlier this month, some scientists now say they understand the origin of animal behavior during solar eclipses.