Notice Hershel's leg! It seems they give him a peg just like with Dale in the comics. Also notice how they've set up a farm type area. I'm thinking they might've gone to Hershel's place and found some living animals I guess? I think this is part of what they were talking about when they said season 4 was going to be following the comics a bit more than the other seasons. I like it! (Also Carl looks crazy older)