The riskiest behavior in humans peaks in adolescence. Researchers from the University of Michigan and James Madison University expected to find risky behavior to peak in adolescence in a study of ...

This ability to recognize crystals despite their differences amazed us," García-Ruiz said. Chimps also do not usually use their mouths to carry objects, so this behavior could mean they were hiding ...

A young chimp hangs from a branch with its mother's hand nearby at the Ngogo Chimpanzee Project at Kibale National Park in Uganda. ANN ARBOR—If you've ever spent time with a toddler, you might be ...