Or is it that the victims pest warning system is currently winning the biological arms race, in which case how are mosquitoes able to successfully reproduce? Or is it that mosquitoes have evolved such that their spawning numbers offset the difficulty they have biting?
Biology is hard.
Honestly, I can see it being a selective trait too. Surely loud mosquitos get detected and killed more often
It’s also worth noting that older humans tend not to hear those sounds as well. This doesn’t explain much, though, because all lot of their other targets hear those pitches just fine.
This might be an evolutionary war, since it’s plausible, that detecting mosquitos led to less infestations and thereby to a higher survival rate.