Pollinators around the world are in trouble: A recent report puts 40% of the smallest ones—like butterflies and bees—at risk of extinction. To find out, researchers ordered a small drone online and souped it up with a strip of fuzz made from a horsehair paintbrush covered in a sticky gel. With enough practice, the scientists were able to maneuver the remote-controlled bot so that only the bristles, and not the bulky body or blades, brushed gently against a flower’s stamen to collect pollen—in this case, a wild lily (Lilium japonicum), they report today in Chem.
http://www.sciencemag.org/news/2017/02/could-pollinating-drone-replace-butterflies-and-bees
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