-Out of all other invertebrates, it has the largest brain, making them trainable and smart as or smarter than dogs.

-An octopus can also change colors at a whim, confusing predators.

-They have eight tentacles and can grow up to seven feet long.

-Their diet consists of other, smaller, invertebrates that they consume with their parrot-like beak.

-An octopus can easily grip objects with the powerful suction cups on it's tentacles.

-Octopi are found in every ocean on Earth.