Assertion: dolphin's blubber | /r/HasProperty | thick fatty layer
Facets:
Source sentences:
text: Dolphins actually do not need hair on the body to survive, as they have blubber (a thick fatty layer) just beneath their skin, which provides insulation in the cold and hot waters of the ocean.
text: They have blubber (a thick layer of fat) just beneath their skin which prevents the heat loss.