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!

Every time they reached out, it would escape and retaliate by squirting octopus ink into the water. This battle of wits continued for a while, as the octopus proved it wasn’t backing down.

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 ...

Some species of octopus make this their primary habitat, so they are adapted to staying in tide pools and making very short forays [that is, seconds] out of the water. (Watch: "Sneaky Octopus ...

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 ...