While sea otters are known for using tools, not all individuals actually wield them. Some otters forgo them entirely and simply specialize in eating soft prey. Some otters use tools occasionally ...

A study published in the journal Current Biology describes a new example of tool use by a critically endangered population of ...

and a new study has found that individual sea otters that use tools—most of whom are female—can eat larger prey and reduce tooth damage when their preferred prey becomes depleted. The study’s ...

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.

In parts of the ocean where sea otters face stark competition for their favorite kinds of food, some otters are getting by with the help of tools — like rocks and even glass bottles — that let ...

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. They bring ...