How the asteroid that killed the dinosaurs made ants into farmers

Madeleine Finlay hears from Ted Schultz, curator of ants at the
Smithsonian National Museum of Natural History, about his recent
study into the origins of fungi farming in ants. He tells Madeleine
about the incredibly complex way that ants cultivate and protect
their fungi gardens, and how the asteroid that hit Earth 66 million
years ago could have kickstarted it all. Help support our
independent journalism at theguardian.com/sciencepod