We adopted her as a mixed breed last month. She looks as if someone bred her on purpose, very well proportioned. We had her DNA tested. It came back mostly Aussie cattle dog, Aussie shepherd and border collie, so I researched online to see if there was anyone around doing that combination on purpose and found the Texas heeler. She is a lot thinner and longer than most heelers and she is red. I think she is a throwback to her dingo ancestors. She is affectionate, funny, loves to herd us around the house and is determined to eat every bunny in the neighborhood. Roxanne learns very quickly. I have experience with corgis and shelties, and this girl can wipe the floor with them. Probably the smartest dog I have ever owned. Rally-O, here we come!