Being able to smell fresh rainfall must have been pretty useful in the dry environments humans evolved in. Bonus fact, geosmin is produced by soil bacteria to attract tiny insects called springtails to eat them and spread their spores. But it also attracts us!
slogginmagoggin t1_j1pgwg8 wrote
Reply to 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? by Corvuscoraxaphro
Being able to smell fresh rainfall must have been pretty useful in the dry environments humans evolved in. Bonus fact, geosmin is produced by soil bacteria to attract tiny insects called springtails to eat them and spread their spores. But it also attracts us!