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) YY4480电影院为您提供影片《恐龙是怎样炼成的》高清无删减版手机免费在线观看,也是一个最新在线观看,高清热门的视频网站,每天都更新大量的热门影视,来满足各位网友的需求!