An emperor tamarin looks as if it has grown a grand white mustache several sizes too large. The long facial hair curves outward from a tiny face, creating one of the Amazon's most memorable portraits.
Yet the mustache is only the introduction to a busy life in the trees.
Small monkey, striking face
Emperor tamarins are small South American primates. Their long tails help with balance as they move through branches.
The familiar name covers animals with differences in facial hair, including black-chinned and bearded forms. Taxonomic treatments vary, so a photograph of one should not be used to claim every emperor tamarin looks identical.
The Smithsonian's National Zoo profiles the bearded emperor tamarin and its forest life.

Life works better with helpers
Tamarins live in social groups. Caring for infants can involve more than the mother: other group members help carry young.
That shared work is useful when a small primate must travel and feed while raising babies. Family members can remain close while moving through the forest.
The New England Primate Conservancy describes the black-chinned form's social behavior and its range in parts of Brazil, Bolivia, and Peru.
A menu among the branches
Fruit and insects are important foods, with other items adding variety. Feeding involves searching the forest rather than visiting one reliable bowl.
Emperor tamarins may associate with other tamarin species. Such mixed groups show that a forest community can be more complicated than a single species moving alone.

A mustache needs a forest
Forest clearance changes the connected habitat these monkeys use for food, shelter, and travel. Their future is tied to keeping those living connections intact.
The white mustache makes an emperor tamarin easy to remember. Its social world gives us another reason to care: behind that extraordinary face is a monkey whose daily life depends on both companions and trees.
Photo credits
Featured image: Kevin Barret; Wikimedia Commons source; CC BY-SA 2.0. Resized for web display.
Body image 1: John Morton; Wikimedia Commons source; CC BY-SA 2.0. Resized for web display.
Body image 2: Jean; Wikimedia Commons source; CC BY 2.0. Resized for web display.
