The Adorable Microbots That Swarm to Build Structures

The beauty of evolution is that it's so nonjudgmental. What began as the first organism billions of years ago has diversified into species that fly and hop and run, whatever best suits them in their environment. As Charles Darwin put it, "from so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved." Look at the explosive field of robotics and you'll actually find the same thing going on. The classic humanoid of sci-fi has diversified into bots that crawl on six legs, or walk on two (however cautiously), or even bound around on a single limb.