An octopus has three hearts and long arms with suction cups. It probably seems very different from you. But you have the main ingredients of octopus ink in your body, too!

The ink even contains a substance that dulls a predator's sense of smell, making the fleeing octopus harder to track. Evasive Behavior Fast swimmers, they can jet forward by expelling water ...

Octopus-inspired ink changes colour when exposed to light. ... “Like with oil and water, [the particles] separate and float to the top, and that is because they’re coloured,” says Tang.

This adorable critter is called Rossia pacifica, but it's more commonly known as the stubby squid.Despite looking like an octopus and being called a squid, it's actually neither — it's most ...