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Two-fingered dinosaur used its enormous claws to eat leaves
A dinosaur fossil discovered in Mongolia boasts the largest ever complete claw, but the herbivorous species only used it to ...
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Two-fingered dinosaur used its enormous claws to eat leaves
Unusually, the claw sheaths – made of keratin, the same material as our fingernails – have been preserved. “Keratin usually doesn’t fossilise. It decays long before bones do,” says ...