[hackernewds]

But bleach is not safe for humans either. Other examples such as bleach: heavy weights, bullets, fire, acid

[copperx]

I think there are bacteria that can withstand acid.

[Ekaros]

Extremophiles is a fascinating classification of organisms. Basically think almost any environment where you wouldn't survive and there is something living there... Ofc, in reasonable limits like not plasma, but at extremes for sure.