Scientists filmed bacteria evolve resistance to 1,000x-strength antibiotics in 11 days
Harvard's Kishony lab built a two-foot-wide petri dish with bands of steadily increasing antibiotic concentration, then released E. coli at one end and filmed it with a time-lapse camera. Within 11 days, descendants of the original bacteria had fought through bands 1,000 times the initial lethal dose, visibly branching and pausing wherever a new resistance mutation had to arise. The 2016 video turned an abstract idea, evolution under selection pressure, into something you can watch happen.