Assertion: hippo's calf | /r/CapableOf | close ear
Facets:
Source sentences:
text: Hippos can nurse their newborn calves both underwater and on land, as these calves can close their nostrils and ears as they feed while submerged.
text: The calf can close its ears and nostrils to nurse underwater; it may climb onto its mother’s back above the water to rest.
text: When it dives, the calf closes its nose and ears to block out water.