They lost the arms and legs of their reptilian ancestors 它们失去了爬行动物祖先的四肢
Their legs extend beneath their body rather than to the side 它们的腿长在身体下方而非侧面
little tail between her legs to become... 毛茸茸的小尾巴 变成了
Ross: We got a head, we got shoulders, we got arms, we got, oh, look at the little fingers, oh, and a chest, and a stomach. It's... It's a boy, definitely a boy! OK, legs, knees, and feet. Oh, oh. He's here. He's a person. 头出来了，肩膀，手臂，还有，哦，看这些小手指，哦，胸口出来了，肚子。他是……是个男孩，绝对是男孩！好了，腿，膝盖，脚。哦哦，他出来了。他是个人。
Ross: I have no brackety thing. I see no worm guys whatsoever...and I cannot feel my legs. 我没有支架，没有看到什么虫子样的东西......而且，我的腿麻了。