Indonesian (Sulawesi) Mammals

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CRESTED BLACK MACAQUE
Female Celebes crested macaque (Macaca nigra), almost all female macaques exhibit some form of "advertising" their sexual status in the form of obvious swelling and pink or red coloration of the skin surrounding their genitals. Females solicit males by presenting their swollen rumps towards the male, looking back at him, and smacking their lips together.