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Science / Sat, 06 Jun 2026 Infomance

Scientists Discover Dog-Sized Scorpion That Once Roamed Earth

A groundbreaking study of 415-million-year-old fossils has revealed that giant scorpions rivaling the size of a modern Labrador dog once inhabited ancient Britain. Published in the journal Palaeontology, the research conducted by experts at The University of Manchester and the Natural History Museum analyzed the remains of Praearcturus gigas. The findings indicate this apex predator reached over a meter in length, using powerful claws and venom to hunt across shallow seas and early terrestrial environments. He noted that the ecosystem supported this massive predator at a time when terrestrial life was otherwise very small, concluding that it likely spent significant time in water where life thrived at larger scales. Dr. Richard J. Howard, lead author from the Natural History Museum, added, “Confirming that this animal is a scorpion fundamentally changes our understanding of how and when these creatures evolved to such extraordinary sizes.”

A groundbreaking study of 415-million-year-old fossils has revealed that giant scorpions rivaling the size of a modern Labrador dog once inhabited ancient Britain. Published in the journal Palaeontology, the research conducted by experts at The University of Manchester and the Natural History Museum analyzed the remains of Praearcturus gigas. The findings indicate this apex predator reached over a meter in length, using powerful claws and venom to hunt across shallow seas and early terrestrial environments.

“Praearcturus has puzzled us palaeontologists for more than a century. By bringing together material from several collections and using cutting-edge imaging techniques, we’ve been able to build a clearer picture of the animal than was previously possible, which is really exciting,” stated Dr. Russell Garwood, a palaeontologist at The University of Manchester. He noted that the ecosystem supported this massive predator at a time when terrestrial life was otherwise very small, concluding that it likely spent significant time in water where life thrived at larger scales.

Dr. Richard J. Howard, lead author from the Natural History Museum, added, “Confirming that this animal is a scorpion fundamentally changes our understanding of how and when these creatures evolved to such extraordinary sizes.”

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