How do squirrels find their nuts?
Squirrels aren't just randomly stashing nuts; they're like super-organized planners. Before burying a nut, they inspect it. Researchers caught them doing a quality check by flicking their heads while holding the nut.
Now, here's the cool part. They play a trust game. When other squirrels are watching, they pretend to bury nuts but secretly hide them later. Smell helps, but the mind-blowing thing is their spatial memory. They remember exactly where each nut is buried, using mental signposts like landmarks. Even when a group of grey squirrels buries nuts close to each other, each squirrel retrieve its own stash.
And get this – a study found that fox squirrels use a fancy strategy called "chunking." It's like creating subfolders on a computer. They organize nuts by type, helping them remember where they hid their favourites and keeping them safe from thieves. Squirrels foraging in a single location organizes their stashes by nut type, while those foraging in multiple locations avoid areas where they had already buried nuts.
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