Weid's Marmoset

Callithrix kuhlii

RANGE East-central Brazil

HABITAT Forests; often near cacao plantations

DIET Fruits, insects, gums, spiders, and small vertebrates

This species is also known as the Weid's black tufted-ear marmoset. They are diurnal and arboreal, and sleep at night in tree holes or other shelter. They feature black ear tufts, a white forehead with light facial hair, and a banded tail. They don't have opposable thumbs.

Weid's marmosets are quadrupedal. They run and hop in trees and bushes and are capable of leaping. Their movements are quick and jerky.

They have specialized short lower canines are used to perforate tree bark, inducing the flow of gums and sap.

When threatened, these marmosets put their ear tufts forward and fluff up their fur to make themselves look larger. They also make a rapid and continuous vocalization. High-pitched whistle is a warning signal.

Their main threat is habitat loss and fragmentation. They are also hunted for pets.