They can use this tail as an extra arm to grip or even hang from branches—no Old World monkeys have such a tail. A gripping tail is particularly helpful to howler monkeys because they rarely ...

Mexico is so hot that vulnerable howler monkeys are dropping dead from trees. Brutal and ongoing heatwaves have been tearing through Mexico, tragically claiming over two dozen confirmed human ...

A rare red howler monkey has been born at a wildlife park in Yorkshire. The primate was born on 29 April at Doncaster's Yorkshire Wildlife Park and keepers said it was still too early to tell the ...