I recently learned that humans can smell rain / petrichor (ozone and geosmin) better than sharks smell blood, now considering we don't have any extra hyper specific olfactory organs like some other animals do, how do we achieve this level of detection? Submitted by Corvuscoraxaphro t3_zuzy3o on December 25, 2022 at 3:17 PM in askscience 92 comments 985