If evolution had a sense of humor – its favorite punchline might be the howler monkeys. These tree-top vocalists are nature’s rock stars: dramatic, loud and convinced that volume equals value.

A group of male capuchin monkeys kidnapped baby howler monkeys – a different species – on a small island of Panama. Video shows the howler monkeys clinging to the male capuchin monkeys’ backs, but the ...

Monte the howler monkey may be the loudest Dad at the Birmingham Zoo. Things are really getting loud in his family. Monte is now the father of three at the Birmingham Zoo, following the June 6 birth ...

The study team believes the monkeys could have come into contact with the plastics through contaminated river water — the forests where they live are flooded for half of the year — or from plastic ...

Animal abduction: Biologists documented five male capuchin monkeys carrying at least eleven different infant howler monkeys -- a behavior never before seen in wild primates. Rise and spread: The ...

Brown howler monkeys (Alouatta guariba), endemic to the Atlantic Forest in Brazil and Argentina, became one of the 25 most threatened primate species following a yellow fever outbreak in late 2016. In ...