Blog: William McKnight

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Tracking butterflies with technology

Tracking the flights of butterflies can be tricky. In "Radar Used to Track Butterflies' Loop-de-Loops", we learn that researchers in England have created a "harmonic radar device" that can be attached to the backs of the butterflies. It's a half-inch long wire attached to the back of the butterfly that transmits a signal. It requires no power and is much like an RFID device. So far, scientists have found, with this technique, that the seemingly random flight pattern is really a search pattern that help locate the source of nectar.

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