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 ...

So, to capture this incredible behaviour, filmmakers and scientists teamed up to create a robotic ‘Spy Sea Otter’ camera for ...

Sea Otter Awareness Week is celebrated annually from September 21 to September 27 to highlight not only why the keystone marine mammal needs to continue to be protected, but also the threats the ...

Sea otters are surprisingly good at using tools. If they come across a particularly tough clam shell and they are desperate to reach the meat inside, they have a plan. They deploy their trusty rock to ...

Otters are well known for their playful, energetic, and inquisitive behavior. However, did you know that otter play has a purpose other than just having fun? Or that otters are some of the most ...

Austrian researchers say they've found the first known example of tool use by cattle, courtesy of a Swiss-Brown cow named Veronika.