Assertion: polar bear's layer | /r/Synonym | blubber
Facets:
Source sentences:
text: As well as their thick fur, they have a layer of fat, called blubber, that insulates (protects) their bodies from the frosty air and near-freezing water.
text: Thick layers of fat, also known as blubber, keep the animals warm, in addition to dense fur.
text: This layer of fat is called “blubber.