Anthropologists have learned a great deal about human evolution from fossilized remains, and one of the most information-rich sources are human teeth. Our teeth, as well as our ancestor’s teeth, tell a very specific evolutionary story, and it’s a story anthropologists have been “reading” for many years. Because teeth are typically the most preserved skeletal remains found in fossils, they are a natural fit for researchers to examine.In her new book, “What Teeth Reveal about Human Evolution,” Ohio State University anthropology professor Debbie Guatelli-Steinberg discusses how and why modern human teeth are vastly different from our ancestors. The thread that weaves its way through the entirety of her book is that “we have teeth that were adapted for eating a very different diet than the one we eat today”  and how, as a result, that reality can cause a number of health issues and concerns.