Over time, early primates split into different groups. The first to appear were the prosimians. Next were the New World and then the Old World monkeys. Old World monkeys live in Asia and Africa and ...

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 ...

"This might be particularly important in primates, which have complex social lives and need to communicate in a variety of different ways," he said. New World monkeys, whose range stretches from ...

Monkeys are the world’s best yodellers, according to new research. Rather than Austria or Switzerland, scientists say the champions at the traditional form of singing which involves repeated and ...

The role of body-size variation as a "line of least evolutionary resistance" has been documented in both Old and New World monkeys (Figure 2). In these cases, diversification of cranial form ...

"This might be particularly important in primates, which have complex social lives and need to communicate in a variety of different ways," he said. New World monkeys, whose range stretches from ...

When monkeys howl—or yodelers yodel—they rapidly ... Herbst et al, 'Monkey yodels'—frequency jumps in New World monkey vocalizations greatly surpass human vocal register transitions ...

While humans can typically yodel within a range of about one octave, the New World monkeys studied can span up to three and a half octaves. This is how a crested capuchin monkey yodels – From ...