Marmosets are small monkeys that live high up in the canopies of South American rainforests. There are more than 20 species, and most could fit comfortably in an adult human's hand. Marmosets have ...

Common marmosets, Callithrix jacchus, are vocal little monkeys from South America with a hearing range similar to that of humans. And like us, it appears these New World primates can perceive pitch.

Marmosets are fluffy, 8-inch-long monkeys native to South America. They are also very polite. New research shows that these little mammals carry on lengthy, back-and-forth discussions without ...

Marmosets are the first nonhuman primates known to use name-like labels for individuals, a new study suggests. By Emily Anthes The common marmoset is a certified chatterbox. The small, South American ...

The wild marmosets living in the Brazilian forest have never seen a television show and certainly have never watched a movie in their jungle homes, until now. When scientists showed the newbies a ...