‣ Thank you to my patrons for supporting these videos: https://www.patreon.com/cgpgrey ‣ The Weed Lab: https://weedscience.agsci.colostate.edu/ Tumbleweed video: https://www.youtube.com/watch?v=hsWr_JWTZss The Evolution of Bacteria on a “Mega-Plate” Petri Dish by: Kishony lab, Harvard Medical School and Technion - Israel Institute of Technology M. Baym, T. D. Lieberman, E. D. Kelsic, R. Chait, R. Gross, I. Yelin, R. Kishony, Science (2016). https://vimeo.com/180908160