Summary:

- Researchers have discovered fossils of the world's largest known arthropod, a giant sea scorpion called Jaekelopterus rhenaniae, which lived around 300 million years ago.
- The new fossils provide the most detailed look yet at the physical features of this massive prehistoric creature, which could grow up to 8 feet long and had a formidable set of claws.
- The findings shed light on the evolution and diversity of giant arthropods that inhabited the ancient seas, and demonstrate the impressive size and predatory capabilities of these long-extinct creatures.