2. Giant Squid
Scientists are yet to figure how old these creatures are, some giant squid corpse was found in Canada in 1968 which showed that giant squids possess partially regenerated tentacle. Some giant squids surely belong to prehistoric area, caught in Antarctica they can be as huge as a bus weighting 770 pounds, their eyes alone have the size of frisbees, it’s a curious fact that their eyeballs don’t have jelly-like substances, they’re just filled with water.


And just like with horseshoe crabs females are bigger than males. There are no scientific reports that verify that giant squids are more than 70 foot long, 43 feet is the giant squid’s maximum length. Just like any other squid, giant squids have got 3 hearts and their brain looks like a doughnut, the same kind of shape so to speak.