When Texan high schoolers Samuel Skotnikov, Changyoung Kim, and Eeshaan Prashanth found out that their friend Aiden’s prosthetic leg was uncomfortable and difficult to use, they decided to make him a ...

Every species on the planet has a few evolutionary advantages that are key to survival. For us humans, it's the ability to use tools. Granted, we're not the only species that knows how to use them, ...