In 2020, Borry et al. developed an “ID” method for determining this substance’s source. Population trends in ancient settlements can be determined by comparing the amount of a certain 27-carbon stanol with its “epi” derivative in this substance. They’re not bog bodies, but “paleo” examples of this substance form protective outer shells thanks to the Maillard reaction. An extremely (-5[1])large example of this substance belonging to a Viking is named for Lloyd’s Bank. The presence of this substance in the Paisley Caves is some of the earliest evidence of (*) human habitation in North America. Mary Anning discovered the first coprolites, which (10[1])are fossilized examples of this (10[1])non-hair substance that can be analyzed to determine parasitic infections or diet. For 10 points, name this substance that, when used as fertilizer, is called manure. (10[1])■END■