Yowsers:

The immense fossilised claw of a 2.5m-long (8ft) sea scorpion has been described by European researchers. The 390-million-year-old specimen was found in a German quarry, the journal Biology Letters reports. The creature, which has been named Jaekelopterus rhenaniae, would have paddled in a river or swamp. The size of the beast suggests that spiders, insects, crabs and similar creatures were much larger in the past than previously thought, the team says. The claw itself measures 46cm - indicating its owner would have been longer even than the average-sized human. Overall, the estimated size of the animal exceeds the record for any other sea scorpion (eurypterid) find by nearly 50cm.

In other news, we're never leaving our studio again. We don't trust these scientist people. Today they say "extinct." Tomorrow they say "yeah, our bad - turns out it was just unextinct enough to eat a large child."

References:
* Man-sized sea scorpion claw found [BBC]

Previously:
* The Things We Can Do - Science Photography Awards Announced
* The Things We Can Do - 3D Images Of The Brain's Architecture
* IIS Begs Science: Please Stop Making Robots That Creep Us The Hell Out