By studying primates such as monkeys, apes and even humans, Sarah Brosnan works to understand how cooperation has evolved across time.
A monkey is a long-tailed, medium-sized member of the order of Primates. The primate order also includes macaques, baboons, guenons, capuchins, marmosets, and tamarins.Monkeys today are a member of two of the three groups of simian primates, the New World monkeys and the Old World monkeys, of which there are 264 known species. Apes and chimpanzees are not scientifically classified as monkeys, a common misconception due to their physical similarities.Some distinguishing features between New World and Old World monkeys include the tail. Most New World monkeys have prehensile tails while Old World monkeys do not. The facial features of each group of monkeys also differ substantially; however, there are a number of shared features as well.Monkeys are a very diverse family of species, ranging in size from the 5-6 inch Pygmy Marmoset, to the adult male Mandrill, which can be 3 feet tall. Some monkeys spend the majority if their lives in treetops, while others call savannas and grasslands home. Most monkeys survive of a diet of fruit, leaves, nuts, berries, eggs, insects and they occasionally hunt other smaller animals.
Male chimpanzees who are meaner to females tend to sire more offspring, which could have implications for the roots of gender violence in humans.
Chimpanzee culture is not nearly as developed as human culture, and a new study suggests that the reason is not cognitive capability, but motivation to learn.
An organization that is seeking to get chimpanzees recognized as persons — not things — under New York law is appealing a 2013 decision that denied a captive ape named Tommy a writ of habeas corpus.
Scientists may have recorded chimpanzees learning skills from each other in the wild for the first time, according to a new study.
A new, 54-year study suggests coordinated aggression is innate to chimpanzees, and is not linked to human interference.
Wild marmosets living in the Brazilian forest can learn how to open a puzzle by watching a monkey do it in a video, a new study suggests.
Swinging on fire hoses. Basking in the sun. See the many ways these chimpanzees are enjoying retirement at Chimp Haven after years in a laboratory.
Macaque monkeys grow up with their mothers and are often not familiar with their fathers. But they can recognise the paternal side of the family even without ever being introduced to them.
A close study of more than 20 guenon monkey species reveals these companionable animals may rely on their distinctive patterns to prevent interbreeding.
Guenon monkeys rely on their incredibly diverse facial patterns to distinguish between different species. Here are photos of their amazing faces.
The virus HSV-2 likely made the jump from chimp ancestors to the ancestors of modern humans about 1.6 million years ago, according to a new study.