When Kathleen Sheehan from Michigan decided to adopt a dog from her local animal shelter, she had a pretty clear picture in her mind of what she was bringing home. The little pup named Dottie had all the hallmarks of a terrier, and Sheehan was convinced the genetics would confirm her hunch. What she got back instead turned her expectations completely upside down.
Dottie had originally come to the shelter from Tennessee, and according to Sheehan, the dog had not had much human contact before being adopted. “She came from a shelter in Tennessee. We think she didn’t have much real contact with people before being adopted, so we are now teaching her how to navigate life as a pet,” Sheehan told Newsweek. The transition to domestic life was a gradual one, with Dottie still showing signs of nervousness around new people even after settling in.
Despite her timid nature with strangers, Dottie proved to be a lively and energetic companion at home. Sheehan described how the dog’s favorite pastime was destroying toys, though she had recently taken a strong liking to outdoor walks. “She actually whines and sits by the door as soon as we put her harness on, as if she’s rushing us,” Sheehan explained. Dottie also developed a particular fondness for playing in the snow, which worked out perfectly given the generous amount of snowfall that season.
Say What?
by u/miz_k in DoggyDNA
The decision to run a DNA test on Dottie came from simple curiosity rather than any medical concern. Sheehan and her family had previously tested another dog they owned and found the experience entertaining, so extending that to Dottie felt like a natural next step. “We tested our previous dog too and found it fun, so we thought, why not her as well?” she said. She went into it fully expecting the results to confirm what she already believed, stating plainly that she was certain the test would show Dottie was a terrier.
The results told an entirely different story. According to the DNA findings, Dottie is 55 percent Doberman Pinscher, which came as the biggest shock of all. The remaining breakdown included 10 percent Pomeranian, 6 percent Pekingese, 6 percent Poodle, and 16 percent Yorkshire Terrier. While there was indeed some terrier in the mix, the dominant Doberman ancestry was something nobody in the family had anticipated. “The fact that she’s more than half Doberman completely blindsided me. I never would have guessed that,” Sheehan admitted.
Surprised and amused by the revelation, Sheehan decided to post the results on Reddit to see how others would react. The response from the online community was enthusiastic and equally stunned. “My jaw literally dropped,” wrote one user. Another commenter offered a more detailed take: “She’s adorable. If I had to imagine what a Yorkie-Doberman mix would look like, it would probably have that shape, but I never would have guessed this.” A third user added: “This completely floored me, but now that I know the results, I can kind of see it. My family has a Chihuahua-Pit Bull mix, and the result is a dog that looks like a Pit Bull but shorter and with a pronounced neck. Similarly, once you know the genes, you can see the Doberman, Yorkie, and Pomeranian in this dog, but honestly, I never would have assumed it.”
Sheehan herself acknowledged that knowing the results did help things click into place, noting that Dottie’s personality had always carried hints of the Doberman temperament, even if her appearance did not.
Pet DNA testing has grown significantly in popularity over the past decade and is now accessible to the average dog owner through mail-in kits from several commercial companies. A 2022 study published in the journal Animals identified the three most common reasons owners pursue DNA testing for their pets as wanting to learn more about a dog’s background when reliable information is unavailable, curiosity about breed composition, and simply participating in something enjoyable and interesting. The science behind these tests typically involves analyzing hundreds of thousands of genetic markers and comparing them against breed reference databases. Mixed-breed dogs, sometimes called mutts or designer mixes, can inherit traits in highly unpredictable combinations, which is why visual breed identification by even experienced shelter workers or veterinarians is notoriously unreliable. Studies have shown that visual assessments of breed in shelters can be wrong more than 85 percent of the time, making DNA testing one of the more reliable tools available to curious owners.
If your own pet has ever surprised you with unexpected DNA results or a personality that didn’t match what you expected, share your experience in the comments.
