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Light-powered GPS collar removes tether to batteries

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Catching bison is a hassle. It’s also expensive. For most, these truths are intuitive — just think about how big the net would have to be — but for a few, the knowledge comes firsthand. Researchers from the World Wide Fund for Nature (WWF) Ukraine, who have direct experience catching the creatures, recently worked with Saule Technologies to develop special bison-tracking collars powered by light. The tracking technology uses perovskite solar cells that are inkjet-printed onto bendable substrates. In addition to accommodating a bison as it grows and moves, the flexible...Read full article

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