Comment by card_zero

So, about one mushroom species in five is poisonous. Why is the ratio so low, why are there lots of edible ones? Without hard-shelled seeds to spread, why be eaten? And the poisonous ones apparently don't use color as a warning signal, and don't smell all that bad, and some of the poisons have really mild effects, like "gives only some people diarrhea" or "makes a hangover worse". Meanwhile three of the deadliest species seemed to need their toxin (amanitin) so much that they picked it up through horizontal gene transfer. Why did just those ones need to be deadly? In addition to which we have these species that don't even make you sick, just make you trip out, a function which looks to have evolved three times over in different ways. What kind of half-assed evolutionary strategies are these? What do mushrooms want?