The Giant Sea Spider was one of the most recently discovered species of creatures found in southern Antartica. It was found in early 2008. This arachnid is about 9.8 inches long and preys on hydroids and bryzoans. Researchers hypothesize that the lack of predators, cold temperatures, and high levels of oxygen in their natural habitat are responsible the giant sea spider’s colossal size.
Giant spider crab | 12 Creatures That Prove The Deep Sea Is The Scariest Place On Earth The largest crab on earth lives up to 1,000ft below sea level, and can measure up to 12ft from claw tip to claw tip. Why they are terrifying: Have you ever been nipped by a normal-sized crab? It hurts. A giant crab would probably nip your toe off.