Then they landed fore-limbs first. But researchers compared frogs of the family Leiopelmatidae, which still sports an ancient physiology, to two more modern frog species.
但研究人员对比了滑跖蟾和两类现代蛙后发现情况并非如此。
2
Taking off on their hind feet, landing on their forelimbs and tail, pushing off again with their hind limbs.