Episode 5 - Why do Dogs Have Dewclaws

A quick understanding of the purpose and mysterious history of the canine's extra digit!
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Paolo Ciucci, Vittorio Lucchini, Luigi Boitani, and Ettore Randi. Dewclaws in wolves as evidence of admixed ancestry with dogs. Canadian Journal of Zoology. 81(12): 2077-2081. https://doi.org/10.1139/z03-183
CLYDE E. KEELER, HARRY C. TRIMBLE, THE INHERITANCE OF DEW CLAWS IN THE DOG, Journal of Heredity, Volume 29, Issue 4, April 1938, Pages 145–148, https://doi.org/10.1093/oxfordjournals.jhered.a104482
Zink C and Schlehr MR (2020) Working Dog Structure: Evaluation and Relationship to Function. Front. Vet. Sci. 7:559055. doi: 10.3389/fvets.2020.559055