Where is the proof that the so called "American Corso" is not the same as that found in Italy? I have heard this too, but many specimens found overseas and in American resemble each other, and some do not. Isn't some variation in working breeds expected? But to say they are different breeds? Is this train of thought correct? Are there Italian Corsos, American Corsos, and this new Canadian Corso Pugliese thing? Cuz worldwide fanciers of the breed only know one dog, the Cane Corso, not an American or Italian Corso. Putting "American" or "Italian" in front of the word "Corso" usually denotes whether the dog was bred in Italy or America. I have been researching the Corso for years now and have yet to find credible evidence of the "Ameican" dogs impuirty.