It might look like a primitive alien life form, but the octopus is an incredibly intelligent creature.
These smart suckers can escape from aquariums, learn how to open clams and even change colours.
Scientists believe that octopuses developed such large brains because they live on coral reefs, the most complex and dangerous environments in the world. Being unable to defend itself physically, the octopus evolved intelligence to survive.
Other research suggests the octopus have, much like great apes, developed emotions and a personality.
Now, new research shows that the octopus has 10,000 more genes than humans.
Clifton Ragsdale, one of the research leaders from the University of Chicago, says “The octopus appears to be utterly different from all other animals, even other molluscs, with its eight prehensile arms, its large brain and its clever problem-solving capabilities.”