Wait, are octopuses building cities now?

Octopus: The Alien of the Ocean?

Octopus vs Squid: What’s the Real Difference?

THE PREMIER LEAGUE CHAMPIONS RETURN 🏆 | Featuring Saka, Rice, Odegaard & Gyokeres l INSIDE TRAINING

Inside 'The Late Show' Set with Stephen Colbert | Set Tour | Architectural Digest

Diver films rare octopus disappearing into sand

Here's a fun fact: Octopuses have three hearts, and two of them stop beating when they swim. That’s right—swimming literally tires them out so much that their bodies partially shut down circulation. Because of this, they prefer crawling along the ocean floor rather than swimming through open water. Even crazier, their blood is blue instead of red because it uses a copper-based molecule called hemocyanin to transport oxygen, which works better in cold, low-oxygen environments. Oh, and about their

Octopus Jumps into Arms: Adorable Marine Biology Moment