An anonymous reader writes with this update about Derby who was born with a congenital deformity that deprived him of front paws and was outfitted with a pair of 3-D-printed prosthetics
. According to Gizmag: "You might remember Derby, a dog who was born with a congenital deformity but last year received a 3D-printed prostheses that enabled him to run for the first time. Well, it's onward and upward for Derby and his carers, who have now crafted an upgraded set of custom prostheses
allowing him to walk proudly with a straight back and even sit like a healthy dog."