With its eight legs wrapped around itself as if in a hug and its eye pupils narrowed to a slit, the octopus breathes evenly, its body a uniform whitish gray. Moments later it begins to change color -- ...

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 ...

If you've ever wondered if octopuses dream, science has a fascinating answer. When these eight-armed masters of disguise fall asleep, they don't simply settle into a quiet snooze. Instead, they ...

When the scientists paired two male octopuses in the same setup, the males interacted by touching arms, but they never ...

Scientists have conducted studies to figure out whether octopuses experience REM-like sleep like humans do.