Assertion: hippo's incisor | /r/CapableOf | make no sense
Facets:
value: given their vegetarian menus
type: CAUSE
Source sentences:
text: But sexual selection also plays a major role: Opening one's mouth very widely is a good way to impress females (and deter competing males) during mating season, the same reason that males are equipped with such enormous incisors, which otherwise would make no sense given their vegetarian menus.