The northern fur seal, rather than using a layer of fat to keep it warm, depends on its thick fur with some 300,000 hairs per square inch.
(The northern fur seal, rather than using a layer of fat to keep it warm; depends; on its thick fur with some 300,000 hairs per square inch)
The northern fur seal, rather than using a layer of fat to keep it warm
depends
on its thick fur with some 300,000 hairs per square inch