I thought that it sounded too good to be true, so I double-checked and…
Otters often have a favorite rock to open their shellfish! Each otter stores a favorite rock in its chest pouch that is unique to them and their preference. The otter loves to keep this tool close when gathering food. Every otter has a pouch for storing food, that is not super noticeable, but an important part of the otter’s body. [Source: The Little Book of Otter Philosophy]
Janet, that is so interesting! And what a cute picture! Donna