Dinosaurs died out 65 million years ago and we h道士出山1ave 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黄页网址大全免费观看 how the experts put skeletons back together, with muscles, accurate postures, and even - in some cases - the correct skin colour. ----------(From BBC Four P泰迪熊电影下载rogramme Official Website)