Assertion: walrus's skin | /r/HasProperty | rough
Facets:
Source sentences:
text: The skin on the bottom of their flippers is rough and knobbly which helps to prevent these enormous animals from slipping on the ice.
text: Their skin is tough and males are covered by wart-like nodules or tubercles (fibrous, callous-like skin patches) that protect them from tusk attacks by other males.
text: The skin on them is thick and rough, providing traction on land and ice.