Let's see the remarkable history of these massive animals. The crown for the world's largest-ever scorpion goes to Jaekelopterus rhenaniae, a monster that swam through ancient waters around 400 ...

Looking not that dissimilar to the terrifying facehuggers in the Alien movies, jaekelopterus was a giant water scorpion that hunted along the shorelines of North America during the Silurian period, ...