Two archaeological digs in Illinois have discovered the oldest dogs in North America. Plus, what dogs of this area resembled.

According to reports at archaeology. com and Science News, the remains of three different dogs were discovered at dig sites in Illinois. The dog remains were dated 10,000 years ago. Prior to this discovery, the oldest dogs were 9,300-years-old before they were eaten by people living in what is now Texas.

The dog remains found in Illinois didn't have any tool marks which leads archaeologists to believe that they died of natural causes. Dogs of this era resembled coyotes and wolves, more so than the dogs we know now.