Dental cavities or caries is a common disease among modern humans, affecting almost every adult. New research shows that Microsyops latidens, a species of stem primate from the Early Eocene epoch, had a high prevalence of dental caries (7.48% of individuals), with notable variation through time, reaching 17.24% of individuals from a particular interval. Archicebus achilles, a tree-dwelling primate from the Eocene of China. Image credit: Xijun Ni /...
