As a species, we’ve done a pretty good job at inventing some useful devices. But as clever as we think we are, given sufficient time, natural selection will beat us at our game at almost every turn.

The U.S. Army has a problem with Velcro. It’s too noisy. And its little loops get clogged with dust from the Afghan and Iraqi deserts. The so-called “hook-and-loop” fastener was added to standard ...

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