The ankle's ability to regenerate cartilage uses the same mechanisms that enable some animals to grow new limbs, and it could ...

For decades, above-the-knee amputees have had to live with stiff, uncomfortable prosthetics that felt more like rigid tools ...

A horse’s joints are key to their ability to be mobile and agile. When horse joints are healthy, they provide a seamless ...

It’s the Inequality, Stupid Eleven charts that explain what’s wrong with America.