Killer whales “groom” each other using tools made from seaweed, as the Daily Star told this week. Experts discovered the ...

Killer whales are known for exceptional intelligence, displaying complex social structures and sophisticated communication.

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 ...

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 ...

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 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.

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 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 ...

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.