Robosaur roams with spring in its step

For the first time, a two-legged, nonhumanoid robot has walked completely on its own, says the machine’s inventor.

Troody, the robot Troodon. D. Coveney

For the past 5 years, Peter Dilworth of the Massachusetts Institute of Technology has been developing Troody-his mobile model of a Troodon, a small, possibly feathered beast that lived some 70 million years ago.