Drop a clump of fire ants into water and they will assemble into a raft that stays afloat for weeks, according to a new study. Plus, a new soft-bodied robot is modeled after caterpillars that curl up and roll away from predators without joints. SciFri's "Pick of the Week" turns to insects and engineering this week.
Source: http://www.npr.org/2011/04/29/135840996/bug-news-roundup-ant-rafts-robot-caterpillars?ft=1&f=1019
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