A video of an octopus changing colors while it sleeps is raising a lot of questions about the mysterious sea creatures. The footage aired in the new PBS documentary titled "Octopus: Making Contact." ...

Octopuses change color to camouflage themselves from predators such as stingrays and eels. Octopuses have even been observed changing color in their sleep. Octopus's color-changing ability is known as ...

Blending in with your surroundings is a crucial (and fascinating) skill in the animal kingdom, which is why many animals can change colors on demand. Chameleons, seahorses, and octopuses can all do it ...

The octopus is one of the ocean’s most fascinating animals. As a species, it possesses almost humanlike intelligence and traits rarely seen in other marine life. This octopus we found on @deepandscary ...