We know that Boston Dynamics is keen onfour-legged robots, evencreating a cheetahof its very own.

So is the EPFL in Switzerland; itsCheetah-Cubhas been in development since 2008 at the Biorobotics Laboratory.

Teaching a quadruped robot to walk can be a tricky business, though.

Enter theItalian Institute of Technology(IIT).

It also developed transitional movements, so that the robot could move between each gait smoothly.

The results were varied.