Great Pyrenees, in a addition to handful of other breeds, have double dewclaws on their back feet. This image from Wikipedia is a great example of what double dewclaws look like: You can see how these toes really do look "extra." But for Great Pyrenees, they're meant to be there. These toes are attached to what is the ankle for a dog.. Why does my dog have extra back toes? Don't be alarmed if your dog is affected. Dewclaws or extra toe on the back feet of dogs are due to the genetics of certain breeds that have adapted to the environment around them. Both the Mastiff and Saint Bernard dog breeds can present this abnormality.
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The Unique Anatomy of Great Pyrenees Paws Great Pyrenees dogs are famous for their majestic appearance and sturdy build, but one feature that often catches the eye is their extra toes. Unlike most dog breeds that have four toes on each paw, Great Pyrenees typically have five toes on their front feet and sometimes even extra dewclaws on their hind legs. These additional digits aren't just a.. The great Pyrenees is the most commonly known polydactyl canine, and may even present six hind toes. The Norwegian Lundehund may present five toes on both his front and hind feet.