CNN — When sea otters hammer mussel shells against rocks to help open them, they're leaving behind their own archaeological record that can't be compared to any other creature, according to a new ...

Add Yahoo as a preferred source to see more of our stories on Google. A floating sea otter named Clamato demonstrated how to crack open clamshells on one's belly as he feasted on seafood at a marine ...

(Reuters) - Humans are not alone in the use of tools. Chimpanzees, for instance, crack nuts with stones and use sticks to get at tasty termites. Dolphins are known to employ sponges to protect their ...

In Monterey Bay, California, southern sea otters face food scarcity as their preferred prey, urchins and abalone, have declined due to climate change, overfishing and other environmental factors. To ...

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Sea otters are one of nature's most fascinating creatures, beloved for their playful personalities and critical role in marine ecosystems. From their dense fur to their impressive tool use, these ...