Pretty cool result with lots of experimental evidence.
Another purely speculative example - Geosmin is the human-recognizable indicator of rain, and given how intensely sensitive we are to this molecule, I wouldn't be surprised if many ecosystem participants also sniff for this molecule.
Its crazy how they put it in everything. The EPA and the FDA should work together to ban it, but good luck approving that with our current administration.
Another purely speculative example - Geosmin is the human-recognizable indicator of rain, and given how intensely sensitive we are to this molecule, I wouldn't be surprised if many ecosystem participants also sniff for this molecule.