A freediver in Cyprus was surprised to play a game of hide-and-seek with an octopus on Sunday. The diver, Matthew Hyatt, who has posted daily video updates to his social media about his attempts to ...

Octopuses and fish are routinely seen working together on the ocean floor, and now scientists say that the cephalopods are the leaders of the pack. By Elizabeth Preston Elizabeth Preston wrote about ...

For its distinctive way of defending its boundaries, consider Octopus tetricus, aka the gloomy octopus. If another creature gets too close, this octopus will respond by throwing things, according to a ...