In the rubble following a natural disaster, a flipped-over robot could mean life or death. But taking a cue from lizards--whose tails keep them balanced as they leap--new robots may be more mobile ...

Unlike other recent running robots that are based on large cats, the Raptor is — as its name suggests — inspired by the velociraptor of days gone by.

This is just one mile and hour slower than the Cheetah robot, designed by Boston Dynamics. The fastest human in the world, Olympic sprinter Usain Bolt, tops out at just over 27 miles per hour.