Thousands of years ago, when tools were very primitive, it was probably common to have a favorite rock.
mercano @ mercano @lemmy.world Posts 0Comments 607Joined 2 yr. ago

mercano @ mercano @lemmy.world
Posts
0
Comments
607
Joined
2 yr. ago
Sea otters exhibit this behavior. They keep their favorite rock in their pouches and use them to crack open shellfish.