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 converse verbally 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 is employed during social grooming when all individuals, including males and females, groom one another, and the male may deposit the gland onto the female.