1900

Buffy-headed Marmoset

South America

1900

Callithrix flaviceps

Endangered

It only dwells on a restricted forest range that has since been converted to agricultural lands and tree plantations while the rest of the surrounding areas are used for cattle ranching, human settlements, and infrastructure development. It is also a favourite target among poachers and captive breeders.

The Buffy-Headed Marmoset, a native Brazilian New World monkey species, belongs to the Callitrichidae family. This rare primate has black and grey fur on its body with orange and yellow cheeks. All digits except the big toes have claws in lieu of nails like all other marmosets.

This diurnal, arboreal social creature prefers to stay with a group of up to fifteen individuals within the rainforests of the states of Espirito Santo and Minas Gerai. Females dominate the males and each group consists of a single breeder.

Its enlarged cecum and low metabolic rate must be some of the reasons it has a preference for plant gums and other high-fibre food items.

Because of its small size (just over 700 grams in weight), it employs four distinct behaviours to ward off predators: first, a soft whistle as a general warning for attackers; second, a high-pitched alarm to signal others to go into hiding or to avoid exposure instantly; third, a low-intensity sound to prepare for a possible terrestrial threat like snakes; fourth, a loud piercing yelp in an effort to scare the predator away.