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Teenage tyrant

点击量:   时间:2019-03-07 11:16:01

THE discovery of the first nearly complete skeleton of a juvenile Tyrannosaurus rex has opened a window on the youth of the most popular predator of the late Cretaceous. The kid rex, nicknamed “Tinker”, was gangly. At 8 metres long, the specimen is not quite two-thirds the length and height of an adult, but only one-fifth the weight. However, the young dinosaur already had the massive bone-crunching teeth of a fully grown adult, according to the Colorado-based palaeontologist Robert Bakker,