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.
Nocturnal lemurs frequently engage in vocal exchanges throughout the night, distinguishing them from other nocturnal species that do not use scent markings. In contrast to typical behavior, their waste is allowed to fall to the forest floor. A prominent skin gland on the male's throat is utilized during social grooming when all individuals groom one another.