Dogs detect medical conditions including diabetes, seizures, and lots of kinds of cancer, and can smell explosives such as landmines — with up to 98 percent accuracy. Inventor Andreas Mershon wants to replicate that — also put a nose at every cellular phone. WIRED’s Emily Dreyfuss and Mershon spoke to find out why that is easier said than done, and to learn exactly what we has been instructed by building a nose about smell.

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Scientist Explains Why Dogs Can Smell a Lot Better than Robots | WIRED