Whats sea otters enemy

Humans are the by far the biggest threat to sea otters, especially since we run the risk of causing an oil spill. But, if you're looking for natural enemies, one is the orca whale, which is eating more and more of them due to the decreasing number of seals. Although orcas are the main natural predator of the sea otter, there have been reports of bears, eagles, stellar sea lions, and even coyotes feeding on a sea otter.