Giant pterosaur needed cliffs, downward-sloping runways to taxi, awkwardly take off into air

(Phys.org)—It weighed about 155 pounds and had a 34-foot wingspan, close to the size of an F-16 fighter jet. A five-foot-long skull looked down from a standing height similar to that of a modern giraffe. By all measures, the ancient pterosaur Quetzalcoatlus was a Texas-sized giant of the air and created a frightening shadow as it soared across the sky.

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