Sea otters are carnivorous, aquatic mammals. Found in and around the kelp beds of the N Pacific, the sea otter is the only exclusively marine species in the otter family. Sea Otters present a rare example of mammalian tool use. They use rocks as tools to pry open food and as weapons to blind their enemies. Hunted to near extinction for their luxuriously dense fur, the otters are now protected under what international treaty? Discuss