He knew precisely which species of Cordyceps could wipe out the ant colony, but so did the ants: they scrupulously inspect every returning member for Cordyceps spores and promptly chew off the head of any ant bearing spores, dumping the body far away from the colony. Stamets outwitted the ants’ defense by breeding a mutant Cordyceps-like fungus that postponed sporulation. He put some of its mycelium in his daughter’s dollhouse bowl, left that on the floor of the kitchen, and during the night watched as a parade of ants carried the mycelium into the nest—having mistaken it for a safe food