WOODS HOLE — Their donut-shaped brains are the largest of any invertebrate on the planet. Their eight highly flexible arms each have hundreds of suckers and millions of neurons that can sense their ...

We named him Squirt – not because he was the smallest of the 16 cuttlefish in the pool, but because anyone with the audacity to scoop him into a separate tank to study him was likely to get soaked.

Consider the cuttlefish. According to new research, this cephalopod has a trick hidden up its tentacles — or rather, its large brain. It reveals one surprising aspect of this creature's intelligence: ...

Further research on cephalopod cognition could not only deepen our understanding of animal intelligence but also highlight the ecological importance of these unique creatures. Enjoyed this article?

We named him Squirt – not because he was the smallest of the 16 cuttlefish in the pool, but because anyone with the audacity to scoop him into a separate tank to study him was likely to get soaked.

It’s the most wonderful time of the year! No, not the holidays—it’s Cephalopod Week, and SciFri uses any excuse to celebrate the mysterious squid, the charismatic octopus and the cute cuttlefish. If ...