I just re-read Avengers #62, the first appearance of Man-Ape. There M'Baku implies that he gained his powers by eating the "flesh and blood" of the white gorilla. It made me wonder if maybe the white gorilla of Wakanda had any relation to the Wendigo of Canada. Isn't there a similar relationship to inheriting power by eating flesh? Plus the white fur/hair...
Has there been any real exploration of the white gorilla mythology? I don't think Priest did in his run, and he'd be the one I would expect...