Some otters rely on tools to bust open hard-shelled prey items like snails, and a new study suggests this tool use is helping them to survive as their favorite, easier-to-eat foods disappear.

“Sea otters vary in how often they use tools,” said biologist Chris Law, who led the research while pursuing his Ph.D. at UC Santa Cruz. “The females are likely using tools to overcome their smaller ...

Smithsonian researchers found that otters that use tools aren't closely related. Latitude 59 LLP / Alamy. Clams, abalone and sea urchins can all make a delicious meal—if you know how to get them ...

Sea otters are known for using tools, but not all of them do. A new study finds those that use tools have better survival odds in a world where their traditional food sources are changing.

Sea otters are large marine mammals that spend their days foraging in kelp forests. They dive to the bottom to grab tasty morsels, plus sometimes rocks that they plan to use as tools.

Some otters rely on tools to bust open hard-shelled prey items like snails, ... Some otters rely on tools to bust open hard-shelled prey items like snails, and a new study suggests this tool use is ...