> Many species of bird also use this advanced ability to keep track of who knows what for food. They’ll hide a stash for winter and find it all later. But it’s

> Many species of bird also use this advanced ability to keep track of who knows what for food. They’ll hide a stash for winter and find it all later. But it’s easier to remember where your friend hid theirs than to get your own. So a whole arms race of deception developed. This reminds me of a backyard squirrel anecdote from a decade ago. A squirrel would laboriously dig a hole and hide a nut in it, cover it with soil, and tamp down the soil -- until it noticed another squirrel watching it from the top of a fence, at which point it immediately proceeded to dig up the nut and carry it away.