Camera trap footage of a white-faced capuchin monkey from Isla Jicarón, Coiba National Park, Panama. Some groups of capuchins in the park have begun using stone tools, which may give insight into how ...

Monkeys in modern-day Thai forests create stone artifacts uncannily similar to those crafted by early humans — challenging the established narrative of human cultural evolution. A new study published ...

Scientists used light to raise a mouse’s heart rate, increasing anxiety-like behaviors in the animal. The study offers a new angle for studying anxiety disorders, Bethany Brookshire reported in “In ...

use tools to help them procure food. Researchers writing in the current issue of Science report having spotted capuchins in the Caatinga forests of northeastern Brazil regularly using stones to dig ...