Ants learned to farm fungi during a mass extinction Ars TechnicaAnts Farmed Fungi in the Wake of Dinosaurs’ Demise 66 Million Years Ago Smithsonian MagazineAnts Mastered Agriculture Millions of Years Before Humans NewsweekScientists discover how ants took advantage of an asteroid that killed the dinosaurs The IndependentGenetic database shows some fungal crops became completely reliant on ants 27 million years ago Phys.org