Howler monkeys have beards and long, thick hair which may be black, brown, or red. The red howler species is the most common, but it is often targeted by hunters eager for bushmeat. Other species ...

This photo is of a skull, mandible and hyoid bone of a red howler monkey, showing the enormous size of the hyoid relative to body size.

This is a computer generated 3-D model of a Bolivian red howler (Alouatta sara), with the hyoid bone in red. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

Lisa Corewyn, associate professor in the Department of Biology and coordinator of the anthropology minor at Ithaca College, ...

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 ...

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 Gulf coast ...