Primatologist Tetsuro Matsuzawa studies chimps in hopes of uncovering how they learn and communicate

While testing the "infinite monkey theorem," mathematicians found that the odds of a chimpanzee typing even a short phrase like "I chimp, therefore I am" before the death of the universe are 1 in 10 million billion billion

A study published in iScience found that chimpanzees performed better on challenging tasks when observed by humans. The research, conducted by Kyoto University, revealed that the presence of a larger human audience improved performance on difficult tasks, while simpler tasks saw a decline in accuracy. This suggests that the audience effect, often linked to human reputation management, may also exist in non-human primates. The study provides insights into social behaviours that might have evolved before the emergence of human reputation-based societies.

The infinite monkey theorem states that illiterate primates could write great literature with enough time, but the amount of time needed is much longer than the lifespan of the universe

Chimpanzee “helicopter moms” often protect their offspring from bullies, but bonobo moms are more hands-off

The infinite monkey theorem states that illiterate primates could write great literature with enough time, but the amount of time needed is much longer than the lifespan of the universe

Much like their human counterparts, chimpanzee mothers provide their offspring with far more than just food

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When given a choice between cooperating or competing, chimpanzees choose to cooperate five times more frequently Yerkes National Primate Research Center researchers have found. This, the researchers say, challenges the perceptions humans are unique in our ability to cooperate and chimpanzees are overly competitive, and suggests the roots of human cooperation are shared with other primates. The study results are reported in this week's early online edition of the Proceedings of the National Academy of Sciences.

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Video: Peaceful bonobos may have something to teach humans.

Chimp Haven sanctuary has new open-air corral for climbing, playing and exploring.

Indianapolis Prize finalist Christophe Boesch has spent half a century researching chimpanzees and their behaviors.