There's a great video that asks and answers a lot of these questions. For instance, I didn't know you can use replacement legs in professional athletics: https

There's a great video that asks and answers a lot of these questions. For instance, I didn't know you can use replacement legs in professional athletics: https://www.youtube.com/watch?v=pfIWxFIVP_Y https://www.youtube.com/watch?v=pfIWxFIVP_Y