Insulation.
Air trapped in their fur keeps them warm
The otter is slim and has a tail. He is covered with fur.
Yes
becausepeople use them for fur hats and used to trade there skin
Otter
they want money. so they sell the sea otter pelts.
The fur of a sea otter grows so closely together, that it is waterproof. It also traps tiny pockets of air, and the air acts as an insulator, helping to keep the otter from losing heat into the water.
Yes they are
yes
Bleep
yes they have fur and born out of his mothers wound
I believe the beaver possibly has the most dense fur.