A Sea Otter's Coat is Very Special - NWF

A sea otter’s coat must be groomed and cleaned constantly. Clean fur is a matter of life and death to a sea otter. This is the only marine mammal without a layer of fat, or blubber, to keep it warm in the cold ocean. Instead, the sea otter’s thick fur coat must keep it warm.

Exploring Potential Sea Otter Reintroduction

A Furry Treasure Trove of Information - Hakai Institute

All fur no blubber (5187893032) - PICRYL - Public Domain Media

Federal Court Approves U.S. Fish & Wildlife Service's Termination

Species Spotlight: River Otter (Lutra canadensis) - Bainbridge

River Otters Coastal and Marine Laboratory

Sea Otter Problems Predate The Fur Trade, 59% OFF

A Sea Otter's Coat is Very Special - NWF

Sea Otters - NWF

Sea Otters - NWF