Howlers are New World monkeys found in tropical Central and South America. They are aptly named ... A gripping tail is particularly helpful to howler monkeys because they rarely descend to the ...

The monkeys' "ultra-yodels" had frequency leaps that were five times larger than human frequency changes, often exceeding ...

South America. It examined their thin vocal membranes, which sit above the vocal cords. They have been lost in humans as we evolved more stable speech. Latin American species of howler monkey ...

However, rapid urbanization and a lack of conservation awareness threaten its iconic species. In Nosara, howler monkeys are paying the price: deforestation, uncovered transformers, and unregulated ...

A new study has found that the world's finest yodellers aren't from Austria or Switzerland, but the rainforests of Latin America ... called vocal membranes allow monkeys to introduce 'voice ...

Researchers at Anglia Ruskin University (ARU) and the University of Vienna have found that vocal membranes in the throats of non-human primates enable them to introduce ‘voice breaks into their calls’ ...