This is the moment an amputee skier carved down a snowy slope—swooping side to side on one leg like an absolute pro. Wendy Gideon, 42, is a congenital amputee, meaning she was born without a leg.

Adero Knott, who identifies as a congenital below-elbow amputee, has joined forces with venture capitalist Arlan Hamilton to develop a bike adapter for amputees. Medium reports the professional ...