Board Thread:Legitimate Canon Questions/@comment-4091815-20131214163949/@comment-4091815-20131229142449

This has been answered by the production. They say Derek couldve gone all "First Season Alpha Badass" but chose not to do so. The real reason they haven't done a "big wolf" is because they're limited by their effects budget. They've focused that budget on the Kanima in season two and the Twin Merge and a handful of other effects in season 3.