Don’t let their cute appearance fool you - sea otters are skilled and relentless hunters, especially when it comes to octopus ...

Sea otters use rocks and other hard objects to crack open shells to get at the meat inside. And certain dolphins use marine sponges to protect their snouts and stir up the seabed while foraging.

Sea otters have up to 1,000,000 hairs per square inch, giving them the thickest fur of any animal on the planet. The human head only has about 2,000 hairs per square inch.

Southern resident killer whales in the Salish Sea off the U.S. state of Washington have been observed making tools from bull kelp stalks, biting off pieces and using them to massage each other in ...

5 fast facts about dolphins Dolphins use tools to find food. Some dolphins cover their beaks with sponges while searching for food on the seafloor. Others use empty shells to trap fish. Dolphins ...

Sea otter diagnosed with asthma after being exposed to wildfire smoke. — -- A Seattle sea otter is learning to use a life-saving new toy: An inhaler. Dubbed "Mishka," the sea otter was ...