As the squirrel rotates a nut between its front paws, its brain is considering a variety of factors to reach the answer to a critical question: Do I eat this nut now, or do I store it for later?
As the squirrel rotates a nut between its front paws, its brain is considering a variety of factors to reach the answer to a critical question: Do I eat this nut now, or do I store it for later?