Marmosets are small, adorable monkeys native to South America, but it would be unwise to underestimate them. These diminutive simians are full of surprises, living sophisticated social lives in ...

The human facial action coding system, or FACS, has been developed as a tool for cross-species systematic comparisons of facial muscles to help interpret the resulting facial expressions of the common ...

Common marmosets (Callithrix jacchus) are New World primates that are found within the coastal rainforests of North East (NE) Brazil. They are a multisensory species, relying on all their senses to ...

The common marmoset (Callithrix jacchus) is increasingly becoming a key species in behavioral and biomedical research. Because of this, research focused on improving the behavioral and physiological ...

In common marmosets, the brain regions that process social interactions develop very slowly, extending until early adulthood, like in humans. During this time, all group members are involved in ...

Source: Dario Sanches, via Wikimedia Commons. Marmosets and other small, tree-dwelling monkeys must be vigilant to survive in the wild. After all, predators ranging from snakes to raptors to cats want ...

Kyoto, Japan -- How could a human mother tell that her child is upset? Humans can distinguish the meanings of facial expressions of our fellow species either explicitly through speech or implicitly by ...

As in humans, infants of common marmosets interact with several caregivers from birth and are thus exposed to intensive social interaction. The development of primate brains is shaped by various ...