We consider humans to be at the apex of social cognition. But we're not the only animals that closely interact with each other. Marmosets, for example, are highly social creatures. In the wild, they ...

Two baby mongooses at the Daktari orphanage are getting a lot of attention from a common marmoset named Thor. Male marmosets play a role in raising their young–which may explain his affection for the ...

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 ...