Which Dog Breeds Have Rear Dewclaws?

 


Photo By The Cutie You

 Dewclaws are fascinating features of doggy anatomy, oft resembling a vestigial thumb located higher on a dog’s leg than the other toes. While most dogs possess dewclaws on their front legs, some breeds are known to have rear dewclaws as well. These rear dewclaws may be single or double (two on each rear leg) and can serve functional or aesthetic purposes, depending on the breed.

Understanding which breeds have rear dewclaws and why they exist can offer insights into canine evolution, functionality, and the specific characteristics of certain breeds. In this article, we’ll explore what rear dewclaws are, why they exist, and which breeds are known for this unique trait.

What Are Rear Dewclaws?

Dewclaws are extra toes that appear higher up on the leg than a dog’s primary toes. While front dewclaws are common in nearly all breeds, rear dewclaws are more unusual and often breed-specific.

  • Single Rear Dewclaws: These are individual extra toes found on one or both rear legs.
  • Double Rear Dewclaws: Some breeds have two dewclaws on each rear leg, which are often required as part of their breed standard.Behind dewclaws may or may not be attached by bone. Functional dewclaws are connected to bone and muscle, providing some degree of usability, while non-functional dewclaws are typically attached only by skin.

Why Do Some Dog Breeds Have Rear Dewclaws?

The existence of rear dewclaws in some breeds can be attributed to their original roles, whether in herding, guarding, or navigating rugged terrain. Here’s why rear dewclaws exist:

  1. Improved Stability and Grip: In certain working breeds, rear dewclaws aid in climbing, navigating rocky or snowy terrain, and maintaining balance.
  2. Breed-Specific Traits: For some breeds, such as the Beauceron or Great Pyrenees, double rear dewclaws are a hallmark feature tied to their heritage and breed standards.
  3. Evolutionary Adaptation: Breeds like the Norwegian Lundehund evolved with rear dewclaws and additional toes to meet the demands of their unique working environments.

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