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 male and female engage in regular verbal exchanges throughout the night, distinguishing this species from other nocturnal lemurs that do not use olfactory signals for communication. In contrast to typical behavior, their urine and feces are allowed to fall to the forest floor. A prominent skin gland on the throat of the male is utilized during social grooming when males, females, and juveniles groom one another, and the male may apply the gland to the female.