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 ...

New research that decoded the evolution of mosquitoes’ feeding habits from DNA could shed light on the murky timeline of prehistoric human ancestors.

Mosquitoes haven’t always had a taste for human blood — partly because the tiny yet dangerous insects have been around a lot longer than humans.

Mosquitoes haven’t always had a taste for human blood — partly because the tiny yet dangerous insects have been around a lot longer than humans.

Last year, I bought two plushies (also known as stuffed animals), one black and one brown, depicting juvenile orangutans. At that time, I was teaching an undergraduate class on biological anthropology ...

Three monkeys died at a Hendry County primate facility, sparking criticism from animal-rights groups. The company says deaths are rare.

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

Social Newsdesk reporter Alice Sjoberg recalled her recent holiday to Africa where she embarked on a week-long stay around a famous park – and it was a lot cheaper than you think ...

In the age of endless scrolling, these clips seem almost ordinary. A penguin walking away from its colony across the Antarctic ice. A baby monkey clut.

Dear Abby advises a father who’s son will no longer speak with him ever since he offered his mother-in-law a plate of food.