下面段落由9个句子构成，现在9个句子的flow存在很多问题，请你识别出来并改写这些地方，在填写答案时，请用删除线删掉错误的地方，并用下划线的方式标注出来你的修改，便于你的同伴对你的作业进行评分，如果忘记添加下划线会影响自己的得分。 1. We have shown that the addition of an artificial tail during ontogeny can produce postural and locomotory changes in chickens, consistent with the posture and kinematics inferred for non-avian dinosaurs. 2. The posterior displacement of the CoM produced a more vertically oriented femur during standing （femur in experimental anima