Twins occur rarely in captivity. Females also transport very young animals in their mouths and males have been observed carrying infants in captivity. Eastern lesser bamboo lemurs live in permanent social groups of between 2 and 6 individuals, and it is not unusual for groups to contain more than two breeding females. Within the group, females are dominant to males, which give them preferential access to food and the choice of whom to mate with. Social bonds within the group are established and reinforced by grooming.
Prosimians groom in a rather unique way.
Due to the fact that the secondary growth which occurs in eastern rainforest after primary rainforest cut down often contains a large percentage of bamboo the suitible habitat might actually be increasing. The Duke Primate Center currently houses a colony of 18 individuals. Eastern lesser bamboo lemurs are the smallest diurnal lemurs. Bamboo lemurs are named for the large amounts of bamboo in their diet.