AP - Rascal's mom looked like Lassie. And his dad? Well, that's a good question. Rascal's ears make it clear that he was the product of something besides a collie, but his owners couldn't say exactly what. So Kathie Svoboda of Lincoln dabbed a swab in her pet's mouth, mailed it to a lab and, a few weeks later, unlocked the mutt's canine heritage.More...