@magicalaquatic: Octopuses have an excellent sense of touch, according to the World Animal Foundation. Their suckers have receptors that enable an octopus to taste what it is touching. A bulbous sack-like body, or mantle, is perched on top of an octopus’ head. The only hard part of their bodies is a sharp, parrot-like beak that is on the underside, where the arms converge. Octopuses have powerful jaws and venomous saliva, according to National Geographic.