A team at the Harvard School of Engineering and Applied Sciences has created a swarm of a thousand small three-legged robots which can organize themselves into various shapes.
Harvard has been a pioneering institution in the development of robots modeled on biological systems. The lead professor on this project, Radhika Nagpal, is associated with both the School of Engineering and Applied Sciences, and with Harvard's Wyss Institute for Biologically Inspired Engineering.
Nagpal has done previous work on termite inspired robots, which would do simple construction tasks. The thousand robot swarm takes the algorithms used in the earlier project to a new scale.
Be sure to take a look at the video below to see the robots in action, and read the article on SEAS's website for much more information on the project.