I'd like to see a shark write that more good.

You mean.... You can ... Bottle up petrichore ??? How come is there no wide range of perfume/candle/lotion and whatnot?

Can I make it at home, if so, how would I go about it with everyday items? Can streptomyces cause health issues?

Well the smell of rain is actually petrichor, it just has a combination of geosmin and ozone and other chemicals that make that smell.

Geosmin on its own is just a part of it.

Trying to get people jealous, are we?

Dann it, you succeeded

It's worth remembering that evolution doesn't select for the best as much as it selects against the worst.

The reason we have such sensitivity doesn't have to be particularly game changing as long as it doesn't make us less likely to reproduce.

You can plainly see our big niche adaptations being used everyday. We think good. We recognize patterns. We use tools. We walk a lot, efficiently and upright. We communicate with high precision. We have a surprisingly efficient digestive system.

We're not busting out the ability to smell rain super often, which hints that it might be more in the "doesn't hurt" category instead of being a big advantage.

My guess is that being able to smell disturbed soil is helpful for tracking, either where an animal has run or where something has been buried. Our ancestors were not above digging up a fresh-ish dead animal a canine had buried for later.
But it could just be that rain sense slightly more accurate than looking towards the horizon was as useful then as it is now: vaguely, I guess? It just doesn't hurt anything.

We evolved in the Savannah.
Rain means the watering holes are filling up, which is obviously good cause we need water, but it also attracts prey animals.

Water is life.

Maybe an evolutionary trait to locate water?

Funny you should call it beet-flavor. Geosmin is literally the reason why beets have that flavor :)

It is also that.

Petrichor is the smell of rain and is a term like Channelle #5 where it's a combination of ozone and geosmin and other compounds.

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