The octopus is a natural escape artist. It can squeeze its soft body into impossibly tight spaces and often baffles aquarium workers with its ability to break out of tanks. These abilities could be ...

By combining custom engineering with behavioral science, Swedish YouTuber Mattias Krantz taught an octopus named Tako to play the piano.

A stranded octopus gets a helping hand back to the ocean and takes the time to "high five" the rescuer. What really happened?

These five research-backed insights show why the octopus remains one of the most extraordinary minds in the animal kingdom.

As far as personality goes, bottlenose dolphins are one of the more charming species to inhabit our oceans. They’re also extremely intelligent, brutal hunters that have no problem bloodying up their ...

Aristotle didn’t have a high opinion of the octopus. “The octopus is a stupid creature,” he wrote, “for it will approach a man’s hand if it be lowered in the water.” Twenty-four centuries later, this ...

When octopuses snooze on the seafloor, their skin sometimes pulses with an array of colors, and at other times, they become pale and plain. These alternating patterns mark two distinct stages of the ...