Sea Otters Have a Special Pocket in Their Armpits for Their Favorite Rocks

[Tanjiro.Kamado]

They use the rocks to crack open clams and other shellfish.

 

[redvelvetjoy]

How adorable is that?! Otters are not only clever tool users but also have a little rock pocket to carry their favorites! I can’t get over how cute and practical that is. Nature is amazing!

 

[SpinelSun]

That's so cool! I want to see their armpits in person, haha. I wonder how many rocks can fit in their pockets.