3 ms·As someone said: every time you kill a spider you're selecting for faster, sneakier spiders.by riffraff 5y agoAs someone said: every time you kill a spider you're selecting for faster, sneakier spiders.warlog 5y agoAnd releasing predation pressure on mosquitoes.jspash 5y agoI like to think the ones that are left prefer to remain unseen. And to me those are the best kind of spiders.