Organisation trumps size in primate brain evolution
(Phys.org) —The evolution of anthropoid primates, including monkeys, apes and humans, over the past 40 million years was largely driven by brain reorganization, and not brain size, according to new research ...
Fossil find adds three million years to oldest known old-world monkey
Study shows capuchins less receptive to others who refuse to help when asked
Nut-cracking monkeys use shapes to strategize their use of tools
Bearded capuchin monkeys deliberately place palm nuts in a stable position on a surface before trying to crack them open, revealing their capacity to use tactile information to improve tool use. The results ...
Owl monkeys who 'stay true' reproduce more than those with multiple partners, Penn study finds
Breaking up is hard to do—and can be detrimental to one's reproductive fitness, according to a new University of Pennsylvania study.
Networking ability a family trait in monkeys
Two years of painstaking observation on the social interactions of a troop of free-ranging monkeys and an analysis of their family trees has found signs of natural selection affecting the behavior of the descendants.
Estrogenic plants linked to altered hormones, possible behavior changes in monkeys
Eating certain veggies not only supplies key nutrients, it may also influence hormone levels and behaviors such as aggression and sexual activity, says a new study led by researchers at the University of ...
Humans, chimpanzees and monkeys share DNA but not gene regulatory mechanisms
Humans share over 90% of their DNA with their primate cousins. The expression or activity patterns of genes differ across species in ways that help explain each species' distinct biology and behavior.
Monkeys put off sex by bystanders
Monkeys shy away from bystanders during copulation, irrespective of the bystanders' gender or rank. The new study, by Anne Overduin-de Vries and her team from the Biomedical Primate Research Centre in the Netherlands, also ...
Study finds that like human children, vervet monkeys learn by copying others
(Phys.org)—The long-held belief that learning through imitation is restricted to humans has been cast in doubt by researchers at the University of St Andrews.
New African monkey species identified
Researchers have identified a new species of African monkey, locally known as the lesula, described in the Sep. 12 issue of the open access journal PLOS ONE. This is only the second new species of Africa ...
More Amazon extinctions looming unless action is taken: study
The old primates' club: Even male monkeys ride their fathers' coattails to success
(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 ...
How cooperation can trump competition in monkeys
Being the top dog or, in this case, the top gelada monkey is even better if the alpha male is willing to concede at times to subordinates, according to a study by researchers from the University ...