Katherine Homes 7-Panel Hat- Giant Pacific OctopusGiant Pacific Octopus The octopus has made an underwater name for itself as one of the most intelligent aquatic creatures to swim in our oceans. The Giant Octopus is the largest octopus species in the world. They are shy and usually friendly towards humans. Octopuses have three hearts, nine brains, and two thirds of its neurons reside in its arms. It is heavily threatened by ocean acidification, becoming a byproduct from overfishing, and habitat