translation.en: What we discovered is whether you look at the leg of a human like Richard, or a cockroach, or a crab, or a kangaroo, the relative leg stiffness of that spring is the same for everything we've seen so far.
translation.zh: 我们发现无论你观察人类的腿 比如说理查的，或者一只蟑螂、螃蟹或是袋鼠的 它们腿中那个“弹簧”的相对劲度都是相同的