Found only in the Bale Mountains and a few surrounding highlands of southeastern Ethiopia, this species lives exclusively in cold, elevated habitats—making it unique among the usually warm-weather vervet monkeys. While most vervets thrive in savannas and lowlands, the Bale Mountains vervet has adapted to lush, chilly montane forests and bamboo thickets, giving it a lifestyle unlike any other member of its genus.

This vervet is medium-sized, with a build similar to other Chlorocebus monkeys, but its thick, dense fur sets it apart. Living at elevations between 2,400 and 3,000 meters (7,874 and 9,843 feet), it needs proper insulation against cold temperatures, fog, and frequent mountain rains. Its coat is grayish to olive-brown on the back, paler on the belly, and more woolly than that of typical vervets. Its face is dark and expressive, framed by pale cheek fur and distinctive white eyebrow tufts. The long tail—used for balance and communication—is one of the clearest links to its lowland relatives, even as the species carves out its own ecological niche.

One of the most striking features of the Bale Mountains vervet is its specialized diet. Unlike other vervets that are highly opportunistic omnivores, this species feeds mostly on bamboo. Bamboo shoots and leaves form the core of its diet, making it one of the few primates in Africa with such a strong preference for bamboo plants. This specialization ties the monkey closely to the Bale Mountains’ bamboo forests—and also makes it vulnerable to habitat loss and disturbance, since its preferred food doesn’t grow widely outside these highlands.

The Bale Mountains vervet is a social monkey, living in family groups typically ranging from a dozen to several dozen individuals. Groups contain multiple females, males, and young, with females remaining in their natal groups while males disperse upon reaching maturity.

Distribution

Country

Population est.

Status

Year

Comments

Ethiopia

VU

2022