Giant Scorpion

A desert creature, the Giant Scorpion hunts by hiding and detecting its prey via vibrations in the sand. In the Silurian Period, 400 million years ago, scorpions were among the biggest predators on Earth. Sea scorpions were especially massive, growing to over 10 feet long. ‘Primeval’ writers invented huge primitive-looking scorpions (based on the modern whip scorpions) that in reality would be too large to even breathe, let alone move about under the sand. Still, modern scorpions hunt on sand by detecting vibration with little brushes beneath their bodies. (Other desert creatures, like moles and snakes, can creep up on their prey from under the sand.)