The common brown lemur is in the Primate order, the Lemuriade family, the Prosimii suborder, and the Eulemur Genus species. This lemur is the size of a house cat. Both its body and tail are 20 inches long. They weigh 5.75 pounds. Males as well as females are brown to dark gray with light beards and dark faces. They can be found in western Madagascar north of the Betsiboka River and on the islands of Mayotte and Comores. The common brown lemur eats fruit, leaves, leaves, and flowers. They have one child per year. Their gestation period is about 120 days, and babies are born between September and November. Infants cling to their mothers' stomachs for the first 3 weeks of their lives. Forest destruction is the main threat to the survival of this lemur. Their lifespan is 20 to 25 years in the wild.