Morphological and Molecular Evidence- The closest relative of the Mexican Grey Wolf is considered the North American Gray wolf. The Gray wolf is an ancestor of the domestic dog.The Mexican Grey wolf is a subspecies of the North American Grey wolf that was once native in Arizona, New Mexico, and Texas. Design of fur on the back is the same. Both wolves having the resemblance of a German Shepherd. Broader skull and long ears.DNA is passed down through the mother's blood line, genetically wolves and dogs are 98.8% identical. This evidence shows evolution in my animal because genes are passed down from generations. They can have the same DNA but different names.