The diet of pygmy marmosets is largely comprised of tree exudates — the sap, gum, resin or latex that oozes out of plants.The incisors, which are narrow and elongated, help these tiny animals ...

Marmoset monkeys exist on a branch of the evolutionary tree that is distinct from the one that led to humans. But these fellow primates consistently astonish researchers with social behavior that ...

Unlike humans, marmosets consistently give birth to twins without the association of any medical issues. It turns out the marmoset gene WFIKKN1 exhibits changes associated with twinning in marmosets.

Marmosets and tamarins live in families of as many as 15 monkeys; within this group, only the dominant female gives birth, usually to twins. While newborns weigh only one or two ounces, that’s a ...

Marmosets in the wild can learn new behaviours from strangers — monkeys of the same species but who are not part of their social group — as this video shows. Such a feat had so far only been ...

From around the curve of the tree came the first pygmy marmoset, skimming along the surface, limbs and tail splayed against the trunk. Its head bobbed up and down, and it moved in quick jerks.