northern muriqui

The northern muriqui (Brachyteles hypoxanthus) is a critically endangered primate found in the Atlantic forests of southeastern Brazil. It is the largest monkey in South America, with characteristics of both woolly and spider monkeys.1

Key features of the northern muriqui include:
* Appearance: Yellowish or brown fur, a mottled pink and black face, and a rudimentary thumb.1
* Size: Adults are 45–63 cm long, with a tail of 65–80 cm. Females weigh about 8 kg, and males about 9.6 kg.1
* Behavior: They are diurnal, arboreal, and live in small social groups. Their diet consists of leaves, seeds, and fruit, and they often hang by their tails.1

The northern muriqui belongs to the family Atelidae and is closely related to woolly monkeys. Their forest habitats are severely fragmented, contributing to their endangered status.1