Voorhies says that in evolutionary terms the ash fell at a propitious moment: “It turns out to have been exactly the time when species of horses were losing their side toes.” The evolution of ...

N.Y., and the American Museum of Natural History in New York, N.Y., and colleagues was titled, "Dietary Change and Evolution of Horses in North America." ...

If you want to see concrete evidence of evolution, look no further than your hand or your foot. Five fingers, five toes. There's nothing ... adult animal -- as in horses' hooves and the wings ...