Beginning in 1792, Gray established trade in sea otter pelts. A decline in the sea otter population slowed trade in 1895. Rescue by Sea Otter was impossible due to the appalling conditions. Formerly, populations of sea otter could be found on the coast. The price of sea otter furs had increased dramatically since the late 1780s. They carried an aircraft catapult and two Supermarine Sea Otter or Walrus seaplanes. "Kolponomos"' dentition was less efficient but exhibited higher stiffness than in the sea otter. Miles away, a sea otter is smashing clams. The most valuable items the British received in trade were sea otter pelts. By 1817 sea otter in the area were practically eliminated. The sea otter displays numerous adaptations to its marine environment. The sea otter is a recurring figure in Ainu folklore. The most valuable items which the British received in trade were sea otter pelts. The last native sea otter in Oregon was probably shot and killed in 1906. The sea otter uses rocks to break open shellfish to eat.