An Octopus is probably one of the most clever animals in the ocean. You have probably seen pictures of them but in real life they can be huge enough to fill a room with very long arms called Tentacles.

They are very fast swimmers and ferocious predators, with long tentacles that can grab, suck and choke their prey very quickly. They can also hide themselves very well from their prey.

Did you know that there is a certain type of Octopus that can transform itself in seconds into a rock shape and can even change the surface and colour of its skin to look rough like the surface of a rock. When its prey is nearby, it quickly changes shape and eats its prey, which is usually a fish, that has little time to escape, having come so close to what it thought was a rock. Clever!

Some Octopus, when they see a passing fish, can stand still in the water and then change colours so quickly that the fish stops to look, wondering what is going on. Once that happens, the fish can't escape and the Octopus quickly eats the fish.

When a fish follows an Octopus, which does not happen a lot, the Octopus can swim away very quickly, spraying a huge cloud of ink from its behind. This seriously confuses the fish that is following it.