seaotter Mammal around the Aleutians Kelp forest resident Kelp bed inhabitant Kelp bed forager Heaviest weasel Furry Pacific denizen Furry marine mammal Endangered coastal mammal Cute, furry aquatic animal: 2 wds Befurred swimmer Aquarium frolicker Abalone eater Heaviest member of the weasel family Animal that catches fish with its forepaws It has the densest fur of any animal Aquatic mammal Playful aquatic mammal Playful marine mammal Coastal creature Playful Pacific Northwest marine denizen Pacific mammal that uses rocks as tools