A truly twenty-first-century development in calculus analysis has been using DNA to try and identify foods, though as a technique it’s still teething. Among the scores of bacterial or viral matches, a few intriguing results came back. The individual from Spy with meaty-looking wear on her teeth had calculus DNA that matched rhino as well as wild sheep; seeing as sheep aren’t really represented in the faunal assemblage, could this be food eaten before arriving at Spy?

