Talk:Tattoo/@comment-97.91.181.222-20130610045143/@comment-4091815-20130610115217

Derek couldn't track Peter in Season 1 because the wolf and human forms smell different.

Scott could Smell Isaac, we believe, because it was a full moon and Isaac was freaked out and not in control of his shift yet.

Scott Couldn't Smell D - because in the elevator he was not transformed at all.

Scott could smell E - because he had claws out already and was partially transformed.