Collared brown lemur  (Eulemur collaris)

This medium-sized lemur has a horizontal posture, which is suited to its predominantly quadrupedal mode of movement (2). These lemurs are also capable of leaping considerable distances, their long furry tails assisting them in maintaining their balance (5). Colouration of this lemur differs between the sexes. Males possess brownish-grey upperparts, with a darker tail and paler brown-grey underparts. The muzzle, forehead and crown are dark slate-grey, this colour gradually becoming paler as it extends down the back of the neck, with a dark stripe continuing down the spinal ridge. The cheeks and beard are thick, bushy and cream to reddish-brown in colour. Females have browner, often redder, upperparts than males, while the underparts are pale creamy-grey. The head and face are grey, with a faint grey stripe extending over the crown. The cheeks are considerably shorter and less bushy than in males. The eyes of both sexes are orange-red (2).