Squirrel monkeys (Saimiri spp.) have always been a common sight in zoos, but this seems to have changed in the past few years. Breeding is often poor, and zoos have discovered that this genus is not ...

Primates possess special anatomical structures in their throats called vocal membranes, allowing for yodeling at higher ...

It may seem hard to believe, but male proboscis monkeys use their fleshy, pendulous noses to attract mates. Scientists think these outsize organs create an echo chamber that amplifies the monkey ...

Male monkeys have large throats and specialized ... Other species of howler monkey may be critically endangered over sections of their ranges.

Caption Male golden snub-nosed monkey with blueish face ornaments and lip wart: Vibrant colors and elaborate body ornaments seen in many primate species may do more than attract mates or establish ...