Ancient 415‑Myr‑Old Scorpion Found in Britain, Challenging Views on Early Arthropod Gigantism

Scientists have identified a fossil of a meter‑long scorpion with massive pincers from 415 million years ago in what is now Britain. The specimen predates the emergence of forests and the well‑known era of giant insects. Its size and morphology suggest a semi‑aquatic lifestyle, a feature not previously associated with scorpions of that age. The find challenges the prevailing view that early arthropods grew large only after terrestrial ecosystems became more complex. The discovery indicates that gigantism may have evolved earlier and in different ecological contexts than previously thought.