Premise: Gray wolf . The gray wolf is the second most specialised member of the genus Canis , after the Ethiopian wolf , as demonstrated by its morphological adaptations to hunting large prey , its more gregarious nature , and its highly advanced expressive behavior . It is the only species of Canis to have a range encompassing both the Old and New Worlds , and originated in Eurasia during the Pleistocene , colonizing North America on at least three separate occasions during the Rancholabrean .
Hypothesis: The gray wolf is a species unrelated to the Canis genus.
Label: CONTRADICTION