The black lemur was the first of these two subspecies (Eulemur macaco macaco and Eulemur macaco flavifrons) to be described and named, so blue-eyed lemurs are regarded as a subspecies of the black lemur. A medium sized lemur (adults can weigh 5 lbs [2.4kg]), blue-eyed lemurs have long tails which are often carried high in the air as the animals move. These lemurs generally move in a horizontal position and will walk or run quadrupedally through the trees and on the ground, except when leaping from tree to tree. This subspecies is one of the most distinctively sexually dichromatic (different coloration in males and females) of all the lemurs. Males are completely black, while females vary from reddish-brown to gray. Although black lemur males are the same intense black as blue-eyed males, females of both subspecies are different shades of brown. Blue-eyed lemurs are the only primate besides humans with blue eyes. The Blue-Eyed lemur lives in fairly large groups which may contain more than one breeding animal of each sex.
Listen to recordings of the vocalizations of a blue-eyed lemur. All sounds are in wav format.