New monkey unveiled to the world — Georgette, the daughter of a local school director in Opala, DR Congo, with her pet Lesula -- the find that led biologists to identify the new species. John Hart ...

Fast forward through five years of field work, genetic research and anatomical study, and today (Sept. 12) Hart and a list of collaborators formally introduced to the world a new primate species ...

Copper titis are New World monkeys. Humans and chimps may share an ancestor with Old World monkeys. This is all to say that copper titi monkeys and humans may both be primates, but they sit on ...

Howlers are New World monkeys found in tropical Central and South America. They are aptly named for their cacophonous cries. When a number of howlers let loose their lungs in concert, often at ...

As a result, the New World Monkeys are "ultra-yodellers," the primates can have frequency leaps up to five times larger than the frequency changes that are possible with the human voice.

New World monkeys, whose range stretches from Mexico to Argentina, were found to have evolved the largest vocal membranes of all the primates, suggesting these thin ribbons of tissue play a ...

A rare, palm-sized, 20-million-year-old fossil skull from an extinct monkey that was discovered high in the Andes Mountains is helping researchers learn more about the evolution of the human brain.

Old World monkeys differ from New World monkeys in having downward-pointing nostrils (Figure 1) and only two pre-molars, while the presence of tails in nearly all forms differentiates them from apes.