The gray gentle lemur is in the Primate order, the Lemuriade family, the Promisii suborder, and the Hapalemur Genus species. This lemur's body is about 11 inches long, with its tail being 14.5 inches long. All gray gentle lemurs have a gray body and a reddish head. The bamboo lemur lives in eastern forests, and the forests usually have bamboo and bamboo vines. The forests they are found in range from the Tsaratanana Massif in the north to the Fort-Dauphin in the south. They eat mostly bamboo, and sometimes feed on fig leaves, grass stems, and small fruit. They mate from June to August. They have one baby per year and the gestation period is 150 days. Babies are carried on their mother's backs. They are not listed as endangered and their life span is 22 years while in captivity.