|Pacific striped, credit: The Independent|
These genes allowed the octopus to evolve an advanced and complex nervous system that helped it survive the ages. Its arms have there own neurons that work independently from the brain, plus huge optic lobes that make it a superb predator. An example of the octopus advanced hunting techniques is exhibited by the larger Pacific striped octopus that stalks prey close enough to tap it on the opposite side of its body with a smart tentacle. [video] This 'tap of doom' startles the prey, usually shrimp, directly into the octopus' waiting arms. Pacific striped octopus also have another interesting behavior. Most octopus have sex at a distance since the females become cannibalistic, but not the Pacific striped. These mating couples enjoy full frontal encounter with sixteen arms grasping each other sucker to sucker, beak to beak, in what scientists describe as "rough sex"!
|mating, credit: R.Caldwell|