User blog comment:MrAnonymous/I think I know what the lizard thing is./@comment-76.94.246.166-20120622044335

I think it might be Lydia because she broke her mirror, and when Scott had the glass shard the lizard got confused, so maybe Lydia's mirror confused her, which is why she broke it. My other theory is that it's a side effect of being bitten/scratched by two different alphas, Jackson was scratched by Peter and bitten by Derek, so it could be some weird unknown effect.