The octopus is a mollusk cephalophod, widespread in the shallow waters of the seas around the world. Not having skeleton, it can take any form passing through very narrow tunnels.
Its has 8 tentacles up to 1 meter long, with double row of sucker. Males can reach 10kg of weight.
He has 3 hearts and lives on average a couple of years. Can change colour quickly.
He is a very clever animal, able to learn by observing the behaviour of his other fellows. The absence of skeleton allows him to pass through very narrow tunnels.