A Cephalopod Has Passed a Cognitive Test Designed For Human Children

Cuttlefish have been put to a new version of the marshmallow test, and the results appear to demonstrate that there's more going on in their strange little brains than we knew.

The researchers found that all of the cuttlefish in the test condition decided to wait for their preferred food (the live shrimp), but didn't bother to do so in the control group, where they couldn't access it.

"Cuttlefish in the present study were all able to wait for the better reward and tolerated delays for up to 50-130 seconds, which is comparable to what we see in large-brained vertebrates such as chimpanzees, crows and parrots," Schnell said.
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