Add Yahoo as a preferred source to see more of our stories on Google. A common octopus (Octopus vulgaris) off Croatia in the Mediterranean Sea. Reinhard Dirscherl/ullstein bild via Getty Images We ...

Add Yahoo as a preferred source to see more of our stories on Google. A common octopus (Octopus vulgaris) swims off Croatia in the Mediterranean Sea. A common octopus (Octopus vulgaris) swims off ...

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.

An “exceptional” number of Mediterranean Octopus have been spotted along the south coast of England this year, putting on rarely-seen displays in shallow waters. Revered as one of the most intelligent ...

Octopuses, along with their cephalopod cousins squids and cuttlefish, are considered to be some of the most intelligent invertebrates out there. They have large brains and are able to quickly master a ...

In recent years, the less frequently encountered common octopus has been showing up more in Irish waters, an influx that may spell changes in Ireland’s marine areas The octopus commonly encountered in ...

Equally mysterious and beautiful, octopuses are captivating creatures. There are over 300 octopus species, and they thrive in every ocean habitat. Their soft bodies can rapidly change shape, allowing ...

Forbes contributors publish independent expert analyses and insights. GrrlScientist writes about evolution, ecology, behavior and health. You might not realize this, but quickly changing colors, as ...

Octopuses in the Red Sea often hunt together with other predatory fish—and sometimes hit them. New videos suggest they're keeping fish in line. Day octopuses in the Red Sea team up with up fish to ...