Snakes have adapted to climb trees, leap across hot sand, and even swim through water — all without arms or legs. What’s their secret? Mike Bock This corn snake, shown here at the Smithsonian's ...

It is easy to think of snakes as creatures that were always legless, gliding effortlessly through grass or sand. Yet millions of years ago, their ancestors had four fully formed limbs. The journey ...

Scientists from the University of Florida discovered that the genetic process for leg development has "simply switched off" in these reptiles, NPR reports. The DNA to develop limbs, called the "Sonic ...