The red-bellied lemur is sexually dichromatic, but in a more subtle way than showier species such as the blue-eyed lemur. Males have dark bellies, distinctive white patches under their eyes, and a very active scent gland on top of their heads, which gives them a perpetual "greasy haired" look. Females have much lighter bellies, lack the white eye patches and have no scent glands on their heads.
Listen to recordings of the vocalizations of a red-bellied lemur. All sounds are in wav format.