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This is Scientific American's 60-Second Science. I'm Karen Hopkin.This'll just take a minute.

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Have you ever sworn that you left your phone in the car, only to find it in your pocket, or on your desk or, admit it, in the fridge.

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Or maybe you just dreamed that you left it on the dashboard and the memory was so real you had to check there first.

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Well, it happens to the best of us.

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And, if you believe the latest research, it can happen to animals too.

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Okay, critters don't misplace their electronic devices.

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But researchers are finding that memory can be as tricky for some beasties as it is for us.

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Take, for example, bees.

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These flying foragers are renowned for their ability to remember which flowers are best and where to find them.

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But it turns out bees can be bollixed.

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Scientists trained bumblebees to expect a droplet of sugar water from two artificial flowers:

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one that was solid yellow, the other looking like an archery target of black and white rings.

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A few minutes later, the insects were allowed to choose between those two flowers and a third one that had yellow rings, a combo of the previous patterns.

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In this short-term test, the bees correctly showed a preference for the petals they'd seen had the sweet stuff.

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But when challenged a few days later, the bees got bamboozled.

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They began selecting the yellow-ringed flower, even though it had never given them anything.

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It was like their memories had merged, or so conclude the authors in their paper in the journal Current Biology.

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Meanwhile, another team of researchers found they could manipulate the memories of mice while the animals slept.

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As rodents skitter from here to there, what are called "place cells" in their brains record their pathways and locations.

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These cells then replay these movements during sleep, helping the animals remember where they've been.

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In this study, researchers used electrodes to turn on cells in the sleeping animals’ pleasure center at the same time as certain place cells lit up.

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This simultaneous sleepytime stimulation essentially forged an artificial memory, linking a particular location with good feelings.

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So when the mice woke up, they spent more time in the happy place of their dreams than anywhere else, even though nothing special actually happened there.

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This research is in the journal Nature Neuroscience.

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Both studies suggest that we all may need to take our memories with a grain of salt.

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Or a dollop of nectar.

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Or a nice piece of cheese.

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.

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