A new study comparing 59 species of primates linked same-sex sexual behavior to scarce resources and more predators in socially complex species. The findings show diverse sexual behaviors are common — ...

ASSOCIATED PRESS — The 43 rhesus macaque monkeys that escaped a South Carolina medical lab this week are among the most studied animals on the planet. And for more than a century, they have held a ...

The human fascination with watching others—whether through reality TV, Instagram stories or overheard drama—is often dismissed as nosiness. But new research suggests this impulse may be a social ...

As animals go about their lives — eating, fighting, having babies — they don’t always follow the script laid out for them by Charles Darwin’s theory of evolution. Not every behavior furthers the cause ...

We're all familiar with Pavlovian conditioning, in which a reward-anticipatory behavior follows a reward-predicting stimulus. Perhaps you experience it yourself when passing a cafe or restaurant and ...

Japanese macaques, colloquially referred to as snow monkeys, famously soak in steaming hot springs during winter. It's easy to see that this helps them stay warm in cold temperatures, but a team of ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. The 43 rhesus macaque monkeys that escaped a ...