Dog drool is a family business for Adam and Ryan Boyko. Over the past decade, the brothers have traveled the globe, fetching thousands of saliva samples from pups in Croatia, Fiji, India, Peru, Qatar, Uganda, and a dozen other countries. They carried the samples back to Adam’s genetics lab at Cornell University, where they scoured the DNA for clues about the history and evolution of man’s best friend…
Dog DNA Testing Gets Its Day
