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vetstreet.com: 15 Worst Dog Breeds for New Pet Owners

8 of 16

No. 8: Australian Cattle Dog

Sometimes known as a Blue Heeler or Australian Heeler, the Australian Cattle Dog is a medium-sized dog with serious endurance. Originally made up of several breeds, including the Collie, Dingo, Bull Terrier, Dalmatian, and Black and Tan Kelpie, he has a reputation for being stubborn and having energy to spare — not to mention a truly adventurous spirit and belief in his own invincibility that will leave you wondering how he’ll injure himself next.

(Ron Willbie, Animal Photography)

More from VetStreet.com:
10 People-Pleasing Dog Breeds
20 Hottest Dog Breeds in America
5 Dog Breeds This Veterinarian Would Like to See Less Of



The opinions expressed are solely those of the author and do not necessarily reflect the views of Comcast.

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