The silvery marmoset (Mico argentatus)
The silvery marmoset (Mico argentatus) is a small, New World monkey from the eastern Amazon rainforest in Brazil.
They reach a size of 18 to 28 cm (7.1 to 11.0 in) and weigh from 300 to 400 g (11 to 14 oz). Their lifespan is roughly 16 years.
Silvery marmosets are diurnal and arboreal. Their fingers end in claws rather than nails (as is true of all marmosets) using their claws to climb trees and gouge gum out of tree bark. They spend the night in tree hollows or in very close vegetation. They live together in small groups and mark their territory with scent glands, driving out intruders by shouting or by facial expressions
The diet of the silvery marmosets predominantly consists of tree sap. To a lesser extent, they also eat bird eggs, fruit, insects, and small vertebrates.
In the wild, silvery marmosets live in groups of 4–15 individuals. The core of each group is a dominant male-female pair and their offspring
The International Union for Conservation of Nature lists silvery marmosets* *as Least Concern (IUCN, 2015), appearing on the IUCN Red List of Threatened Species.