DALER robot can walk and fly like a vampire bat
DALER has been designed to be used in the search and rescue operations. Its dual mode of movement allows it to fly longer distances and perform surveys in a very short time period. If it's unable to fly over certain areas, it can transform itself and start 'walking' on the surface. You'd guess that the span of the wings creates problems for the machine to fly in certain areas. The study of bats helped researchers design foldable wings that would also help the robot walk.
Watching DALER walk on the ground ain't a pretty sight; but you'll appreciate the crazy engineering that went into design the wings. DALER's been designed to reach up to 20 m/s and on the ground speeds of about 6 cm/s. Though that may not be very impressive speed, you'll appreciate that it can be quite fast at the rescue sites where other machines fail. Check out the video below that shows DALER in action.