Apparently, a group of cave-fish in southern Mexico have had quite enough of a religious ritual that ends in their death. The fish, over the course of more than five centuries of repeated springtime ritual poisonings, have evolved a tolerance to the lethal toxin. Their fry inherit the resistance, indicating it is a genetic trait.

I wonder if someday human beings will evolve a resistance to the poisons of religion – such as religious wars, intolerance and the donation of vast quantities of hard-earned capital to fund impractical pageantry?