Cuttlefish show self-control, pass ‘marshmallow test’

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Cuttlefish can pass the “marshmallow test” — the famous psychological test of self-control.

In this case, the cephalopods were willing to forgo meals when they knew that waiting meant they would be rewarded with more delicious treats, according to a new study. That makes them the first known invertebrates to show the ability to exert self-control.





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