The male and female are in frequent vocal communication throughout the night, but this species in unusual among nocturnal lemurs in not communicating through olfactory signals, and the urine and faeces are allowed to drop to the forest floor. A large cutaneous gland on the throat of the male is used during social grooming when males, females and juveniles groom each other, and the male may rub the gland on the female. The female comes into estrus for three to four days in June, giving birth to a single offspring in November or December. This remains in the nesting hole of the parents at first, but as it gets older it is carried by the mother, clinging to her underside, and when it gets larger, to her back.