The oldest remains of a domesticated dog in North America were found in Alaska, and this pooch may add a missing link to when and how the first domesticated dogs migrated here from Russia – but it’s looking more and more like the first ones were at the side of the first humans to migrate here. This is an exciting historical discovery – not just something to rub in the face of your cat-loving friends. “The fossil record of ancient dogs in the Americas is incomplete, so any new remains that are found provide important clues. Before our study, the earliest ancient American dog bones that had their DNA sequenced were found in the U.S. Midwest.”