Oh wonderful! A biologist who is even more interested in the microbes in poop than I am — and who ran an interesting experiment on two testing services, which (among other interesting results) shows that perhaps all pieces of a single “log” of poop are not bacterially equal, a term that author Tami Lieberman, PhD, terms “spatial heterogeneity”. It’s a good read! Which bacteria are in my poop? It depends where you look… | Oscillator, Scientific American Blog Network.