While exchanging favors with others, humans tend to think in terms of tit-for-tat, an assumption easily extended to other animals. As a result, reciprocity is often viewed as a cognitive feat requiring memory, perhaps even ...
Sep 03, 2012
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(PhysOrg.com) -- Male capuchin monkeys have been observed to urinate on their hands and then rub the urine vigorously into their fur, and now a new study by scientists in Texas suggests the behavior signals ...
Feb 28, 2011
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(PhysOrg.com) -- A problem faced by scientists comparing the mental abilities of humans, chimpanzees, apes, and monkeys is that the humans are tested by their own species and understand the requirements of the tests, while ...
Feb 09, 2011
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(PhysOrg.com) -- J. David Smith, Ph.D., a comparative psychologist at the University at Buffalo who has conducted extensive studies in animal cognition, says there is growing evidence that animals share functional ...
Sep 14, 2009
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(Phys.org) —A team of Japanese and British researchers has found that capuchin monkeys behave less receptively towards people they observe who refuse to help when asked by another person. In their paper ...
Mar 06, 2013
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(Phys.org) -- If you're a male born to a father who's a strong and enduring community leader, you're far more likely than your less fortunate peers to become a leader yourself, due to the wide range of social ...
Jul 10, 2012
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The ability to share knowledge and learn from each other may be the key difference between people and chimpanzees that helped humans to dominate the modern world, scientists suggested on Thursday.
Mar 01, 2012
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Given a choice between spending a token to get their absolute favorite food or spending it to have a choice from a buffet of options, capuchin monkeys will opt for variety.
Mar 15, 2010
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Imitation, the old saying goes, is the sincerest form of flattery. It also appears to be an ancient interpersonal mechanism that promotes social bonding and, presumably, sets the stage for relative strangers ...
Aug 13, 2009
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(PhysOrg.com) -- When Tchaikovsky penned The Nutcracker, the last thing he probably had in mind was a capuchin monkey. And yet new research, co-directed by a researcher at the University of Georgia, is changing our view about ...
Feb 04, 2009
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(Phys.org) —A common species of monkey is underlining the message that it's nice to be nice.
Mar 06, 2013
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When primates don’t get the same rewards as their peers, they often refuse them. A Georgia State University researcher is exploring why this reaction happens, and how reactions to inequality have evolved in related species, ...
Aug 18, 2009
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