CHICAGO (WLS) -- Animal researchers have known for some time that chimpanzees are very much like us. But a new study shows that just as we go to war sometimes to protect our territory and way of life, ...
Great apes share human-like social circles, but chimpanzees and bonobos differ in how selectively they maintain close social ...
Adolescents are known for risky behavior, with teenagers in the U.S. more likely than younger children to die from injury. But what's responsible for this uptick in risk-taking around puberty?
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