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.

Octopuses are cephalopods that live in oceans around the world. They are also some of the most intelligent creatures on Earth. Their brain structures vary depending on where they live. For example, ...

Researchers studying a deep-sea octopus called Muusoctopus robustus have found thousands of the animals congregating at hydrothermal springs near an underwater mountain off California, raising fresh ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. These five research-backed insights show why the octopus ...

Animal intelligence stories travel fast, and tidy myths travel fastest. An octopus unscrews a jar, a parrot says hello, a bee dances, and many people leap to one-line conclusions about genius, ...