Wied's marmoset

Wied's marmoset (Callithrix kuhlii), also called Wied's black-tufted-ear marmoset, is a New World monkey that lives in the tropical and subtropical forests of eastern Brazil. It was first found by Prince Maximilian of Wied-Neuwied during his travels of 1815 to 1816, and bears his name. Unlike other marmosets it lives in groups of four or five females and two or three males plus their young; the groups are matriarchal and only the dominant female mates, and offspring are always born in pairs. The coat is mostly black with white markings on the cheeks and forehead, a ringed tail and black ear tufts. It supplements its diet with fruit, nectar, gum, tree exudates, vines and insects, and is preyed on by birds of prey, cats such as the jaguar and ocelot, and snakes. The species is known for chimerism, in which individuals carry cells from their siblings.