They are so curious too. It's so cute how curious they are. You go stand by a meadow with cows and they'll all come running towards you to check you out. Then you walk away and they'll just walk along.
Cows are incredible and I love them so much! I really do have to credit that sub for opening my eyes to how awesome they are though. I always thought they were pretty brain dead before, and then I started looking into it. That sub is the most effective argument for vegetarianism I've ever seen.