Ancient fossils reveal giant scorpions, Praearcturus gigas, exceeding a meter in length, dominated Britain over 400 million years ago. These predators were larger than modern dogs and ruled their environment long before dinosaurs. This discovery challenges previous understandings of when and how such large arthropods evolved. The findings offer a glimpse into a vastly different prehistoric world.

A terrifying giant scorpion measuring 3.2 feet (one metre) long roamed Britain 415 million years ago, a new study has found.

Species emerged at a time well before the evolution of trees and lived a semi-aquatic life, scientists say