When there isn’t much food to go around, most chimpanzees stop playing altogether to conserve energy, but mothers continue to spend lots of time playing with their young. Play is vital for the ...

When it comes to nurturing their young, mother chimpanzees go the extra mile, according to a new study. Using 10 years of observational data on wild chimpanzees, researchers found that while adults ...

You are never too old to play — a maxim that even adult chimpanzees seem to follow. Young chimpanzees are already known to get many benefits from playing. But it seems to also be more important among ...

Leave it to a baby chimpanzee to put a new spin on play time. 21-month-old Milou was caught in this viral video jumping, spinning and dizzily collapsing over and over as his fellow chimps remain ...

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 ...