This highly social, nocturnal creature has a complex chemical communication system based on scents produced by frontal, sternal, and urogenital glands of males and by pouch and urogenital glands of females. Each has his and her own signature scent, which enables others to recognize it. However, the dominant male also actively marks his group members with his saliva, and by using scent glands on his chest and forehead. That’s a sure way to tell if an individual belongs in the colony or not.