An ongoing study of the cause of death of howler monkeys on Barro Colorado has identified the howler monkey bot fly Cuterebra baeri as the single most important factor. Very young monkeys are the ...

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 ...

Normally quite intimidating, howler monkeys are muscular and can ... “They want to care for them, mainly the baby monkeys, adopt them.” “But no, the truth is that babies are very delicate ...

The department said authorities have started putting out water supplies for the howler monkeys and set up a mobile veterinary facility that is treating seven baby monkeys and five adults.

My adventure of a lifetime began in 2015 when I was asked to follow the tree-top lives of Costa Rica’s gravity-defying howler monkeys (Alouatta palliata palliata). Image by Justine Allan.

A day after announcing the death of an American black bear, the Cape May County Park & Zoo welcomed a 6-year-old male black howler monkey named Diego.