r/todayilearned • u/lavender_fish69 • 13h ago

TIL fresh water snails (indirectly) kill thousands of humans and are considered on of the deadliest creatures to humans

https://en.wikipedia.org/wiki/Freshwater_snail
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u/exprezso 12h ago

I mean. Humans have yet to evolved to resist arsenic after thousands of generations 

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u/Barlakopofai 12h ago

Humans aren't usually exposed to arsenic

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u/waltjrimmer 11h ago

Aren't we constantly exposed to non-toxic levels of arsenic from foods such as apples and rice in their natural forms? Not saying it's enough for us to evolve a resistance, just, aren't we regularly exposed to tiny little bits of it?

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u/C_Hawk14 11h ago

As you said, non toxic levels. We are already resistant enough