Octopuses are extraordinary creatures, and their blue blood is just one of the many unusual aspects of their biology. That means there's a huge part of the ocean, over 95% that are yet to be explored.

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

BOSTON (AP) — Mythology and superstition have portrayed octopuses as alien beings or evil creatures dwelling in the terrifying dark depths of oceans. Little wonder, considering they are a bit unusual.

Related video above: Octopuses use their tentacles to tasteWith 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 ...

Journalist Bonnie Burton writes about movies, TV shows, comics, science and robots. She is the author of the books Live or Die: Survival Hacks, Wizarding World: Movie Magic Amazing Artifacts, The Star ...

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We don’t know if androids dream of electric sheep, but whatever octopuses dream of must be something adventurous because they change color a lot while they’re sleeping. And while the octopus in the ...

The octopus is one of the coolest animals in the sea. For starters, they are invertebrates. That means they don’t have backbones like humans, lions, turtles, and birds. That may sound unusual, but ...