In the scene where they test their grenades ( i think, hey were using bombs of some sort) and they see a dairy cow ( what is a dairy cow doing in the desert anyway??) and they throw the grenade at it. when it blows up, they all take a look at the destroyed cow, and when the camera shows it, you see the cow's head, and it is a bull with horns. so hmm, what happened to the dairy black and white cow??