The emperor tamarin (Saguinus imperator) is a small primate species known for its distinctive appearance, particularly its long, white moustache that gives it a regal, emperor-like look. It is native to the Amazon Basin and is closely related to other species of tamarins.

The fur on its body is primarily greyish or brown with orange or yellow highlights on its chest and limbs.

They have small, claw-like nails (called tegulae) instead of flat nails, which helps them climb and grasp trees easily.

These tamarins live in social groups of 4 to 15 individuals, typically consisting of adults and their offspring.

They are highly cooperative breeders, meaning usually only one female in the group breeds, while others (both males and females) help care for the young. The groups are close-knit and communicate using vocalisations, body language, and even scent marking.