Add Yahoo as a preferred source to see more of our stories on Google. Sea otters are highly intelligent marine creatures. Their intelligence is shown by their inquisitiveness and their use of tools.

Did you know that sea otters have favorite rocks they keep around to help them open up clam shells and other shelled mollusks? They have loose pockets of fur under each of their arms where they store ...

Many sea otters keep a preferred rock tucked into those underarm pouches and use it repeatedly to crack open tough shells. Researchers have documented this consistent tool use across populations, ...

Otters are among the few animals known to use tools while feeding. From cracking shellfish with stones to storing favourite ...

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