A TikTok video of a confident sea otter showing a fisherman a pebble it has been carrying around has gone viral - and social ...

For sea otters, rocks are an important part of daily life — used as tools to crack open hard-shelled snacks and as playthings to juggle. In fact, otters will often have a “favorite rock,” they seem to ...

The deceptively cute sea otter, named Ollie, has been seen toting around the bodies of river otters that have visible sexual ...

Sea otters leave their mark on shoreline rocks they use to crack open shells, researchers reported yesterday (March 14) in Scientific Reports. They are the only marine mammals known to use stones as ...

We're starting to realize how smart otters really are. They know how to play basketball. They know how to stack cups, They know how to use rocks to open clams. This type of tool use is ...