Deep in the rainforests of South America lives a monkey so tiny it can fit in your palm. Known as the pygmy marmoset, this remarkable primate holds the title of the world’s smallest monkey. Weighing ...

Marmosets may have more sophisticated communication than we first thought, with individuals even having names. The monkeys have been observed using special vocal calls, dubbed "phee calls," to ...

Monkeys live throughout Asia, Africa, Central America, and South America. They’re distinct from other types of primate, like great apes (gorillas, chimpanzees, orangutans, bonobos, gibbons) and ...

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 ...