Delayed gratification — the ability to sacrifice an immediate reward for a more valuable one in the future — can tell us a lot about intelligence. While once believed to be a uniquely human trait, ...

Cuttlefish — and cephalopods in general — are known to be the most intelligent of the invertebrates. They’ve got big old brains and their senses are pretty extraordinary. We know they’re smart, but a ...

The cephalopod cuttlefish has passed a famous psychological “marshmallow” test designed to gauge the propensity for delayed gratification in children. The findings indicate that these sea creatures ...

A study published inProceedings of the Royal Society Bhas revealed that common cuttlefish can pass a test of delayed gratification—a benchmark of cognitive ability typically applied to children, ...