5 Surprising Facts About Octopuses You Didn't Knew

Octopuses have blue color blood, it contains hemocyanin, which is responsible for keeping them alive at extreme temperatures.

Each of the octopus's arms has a small cluster of nerve cells that controls arm movement, so they technically have 9 brains.

Octopuses are soft-bodied invertebrates – they don’t have bones, octopuses can regrow their arm or tentacle if they lose one.

Female octopuses die shortly after their eggs have hatched and male octopus typically dies a few months after the mating.

All octopuses have venom, when they catch prey, it breaks into shell and injects its venomous saliva into the prey to kill it