Thirteen million years ago, a group of medium-sized monkeys known for guarding their territory among the treetops with fearsome "howls" started doing something new. These monkeys, among the oldest ...

Key Facts 13.3-million–13.6 million-year-old fossils from an extinct relative of the howler monkey show signs of being the first leaf-eating ...

• 13 million years ago, a medium-sized monkey known for guarding its territory among the treetops with a fearsome “howl” started doing something new. This monkey, one of the oldest known ancestors of ...

A black howler monkey sits on a tree branch in the Amazon Rainforest, Brazil. The surrounding forest shows dense vegetation ...

In the kitchen of UC Davis Professor Emerita Sarah Blaffer Hrdy, overlooking a long dining table, hangs a painting by artist Isabella Kirkland.

He went from dreaming of becoming a biologist to using photography to document wildlife. Learn about the disciplined traits ...

SPECTACULAR volcanos, breathtaking lakes and ancient jungle cities – explore this Central American gem before the crowds hit, ...

According to color psychology, this soothing shade helps decrease stress and improve focus—and travelers can reap these much-deserved benefits in lush landscapes around the world. Here are 10 of the ...

In remote mountain schools on Costa Rica’s Caribbean side, children saw brass instruments up close for the first time when Austin Peay State University’s Aurum Sonor Brass Quintet arrived to begin a ...

Sponsored content  No matter what’s going on in the world, nature and wildlife have an amazing ability to comfort, ground, ...

Along the border of Brazil and Argentina, the Iguazu River widens, slows, and then drops. The land simply falls away. Iguazu Falls stretches roughly 2.

Primates are considered to be among the most intelligent creatures in the animal kingdom. This is especially so concerning chimpanzees, who top the non-human intelligence list. However, among primates ...