I have no idea about this, but, how hard would it be in theory to test? Just remove a spider from any other spiders and see if they develop that behavior. I do

I have no idea about this, but, how hard would it be in theory to test? Just remove a spider from any other spiders and see if they develop that behavior. I don't know if the parent comment represented the expert consensus correctly, but if they did, I wouldn't automatically be skeptical of it.