Asteroid that wiped out the dinosaurs may have led to the invention of 'ant agriculture' Phys.orgWhen a massive asteroid wiped out the dinosaurs, ants began farming fungi CNNAsteroid impact may have turned ants into fungus farmers 66 million years ago ScienceDinosaur-Killing Asteroid Impact Turned Ants into Fungus Farmers, Study Says Sci.NewsAnts learned to farm fungi during a mass extinction Ars Technica