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Dinosaurs died out 65 million years ago and we have hardly ever found a complete skeleton. So how do we turn a pile of broken bones into a dinosaur exhibit? Dr Alice Roberts finds out how the experts put skeletons back together, with muscles, accurate postures, and even - in some cases - the correct skin colour. ----------（From BBC Four Programme Official Website）《恐龙是怎样炼成的在线观看》由123电影www.123dyhd.com收集自网络发布。
