According to Piers Mitchell, a paleopathologist from the University of Cambridge, scientists have been extracting data from ancient human poop for over a century. “In the past, we’ve been able to look at a single coprolite from a single person”—that is to say, a preserved turd—”and study the microbiome of that one individual.” (The microbiome is the complex collection of microbes living in every animal’s digestive tract.) Now, in a newly released paper in Philosophical Transactions B, Mitchell and co-authors Susanna Sabin and Kirsten I. Bos have blown the lid…
