Reading through the descriptions of the two animals, Di Tou couldn't help but frown when he read that yellow-tailed wolves were typically five feet long and three feet tall. Looking at the wolves scattered about, they seemed a little small. Could he have identified the wrong species? But then, looking at the distinctive traits, that shouldn't be the case, right?
Skimming through the rest of the information, Di Tou quickly found out that an identifiable factor that would indicate that the yellow-tailed wolf had stepped into the Demon Core stage was a slightly orange tint on the bottom of the yellow 'tail' of the wolf. Going around the remaining five corpses, Di Tou pulled up the tail before singling out the two wolves that he thought seemed to have a little bit of orange.