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 ...

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DECATUR, Ill. (WAND) - The Scovill Zoo has a new addition! A baby Howler Monkey was born there Christmas Eve! Andi the Howler ...

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 ...

MEXICO CITY--It’s so hot in Mexico that howler monkeys are falling dead from the trees. At least 83 of the midsize primates, who are known for their roaring vocal calls, were found dead in the ...

Alejandro Zúñiga / The Tico Times. Howler monkeys, native to Costa Rica, are increasingly threatened by human activity. Traditionally known for swinging from branch to branch using their tails, these ...