"Sea otters" refers to a type of marine mammal that lives in the ocean and is known for its cute appearance, playful behavior, and its ability to use tools to help find food. Full definition
A federal study of sea otters in Prince William Sound, Alaska, where the Exxon Valdez supertanker spilled around 30,000,000 gallons of oil about 25 years ago (the second largest spill after the Deepwater Horizon disaster) has concluded that the otters have returned to pre-spill numbers. (treehugger.com)
Where once there were next - to - no southern sea otters in California waters — fur traders hunted them to near - extinction in the 19th century — now there are some. (marinemammalcenter.org)
[144] The role of sea otters in maintaining kelp forests has been observed to be more important in areas of open coast than in more protected bays and estuaries. (en.wikipedia.org)