With powerful talons and silent flight, harpy eagles are some of the most formidable hunters in the rainforest. In this video ...

Primates don’t monkey around when deciding where to spend the night, but primatologists have had a poor grasp on what drives certain monkeys toward specific trees. Now, two extensive studies of ...

Gilberto Pozo, a biologist, was monitoring a small forest in the town of Cunduacán, in southern Mexico, in early May when two mantled howler monkeys fell from a tree in front of him with a thud.

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 ...

A heat wave in Mexico is so fierce that howler monkeys are dropping dead from trees. At least 85 of them have died in Tabasco state as temperatures soar to 113 degrees Fahrenheit and beyond.