Each participant in the X-Thousand Dogs Study will receive a report with information about their dog’s ancestry. In this post, Loyal’s Dr. John Lindo, who specializes in ancient DNA and canine evolution, explains how our understanding of the relationships between species has changed over time and what a DNA test can—and cannot—reveal about your dog’s ancestors.

DNA methylation is a useful tool for assessing health and longevity—both in dogs and humans. Loyal scientists are studying aging through the lens of DNA methylation and epigenetics.