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 communication throughout the night, setting them apart from other nocturnal species that do not rely on scent markings. Unconventionally, their waste is permitted to fall to the forest floor. A notable skin gland located on the male's throat plays a role during social grooming when all individuals groom one another.