Frozen Ant Rafts Could Teach Us How to Make Self-Assembling Robots

A writhing mass of fire ants floating across the water is thing of horror and a marvel of engineering. But how do you study the architecture of ever-squirming ants? By flash-freezing them and coating in glue, as scientists did for a recent study. Ant rafts, it turns out, are more complicated than you might think, and… » 6/12/14 10:00am 6/12/14 10:00am