有些恐龙会爬树科学家曾认为恐龙的踝骨像鸟那样，只能前后活动，不能左右活动，更难以爬树。今年夏天在美国华盛顿召开的北美洲古生物学会议上，美国著名的古生物学家Ｒ·贝克描述了一保存完好的踝骨和脚骨化石，那是一种如鸡一般大小的草食性恐龙，生存于１亿年前的怀俄... Some dinosaurs will climb trees Scientists once thought dinosaurs like the bird ankle, can only move back and forth, can not be left and right activities, more difficult to climb trees. At this North American palaeontology conference held in Washington this summer, R Baker, the famous paleontologist in the United States, described a well-preserved ankle and footed fossil, a herbivorous dinosaur of chicken-like size that survives Hundred years ago in Wyrm ...