Assertion: monkey's male | /r/CapableOf | keep intricate skin frills
Facets:
value: on the surface of the hemipenes
type: LOCATION
Source sentences:
text: These rounds of rubbing may have a purpose — one study of the behavior suggested that pulling off the top layer of hemipenis skin may help remove any bacteria and parasites the male picked up during copulation, or keep the intricate skin frills on the surface of the hemipenes well groomed.