Cows emitting more greenhouse gasses than X isn't correct. That was a scare factoid disproved years ago (most science takes ~20 years to get into popular knowledge, or so I've been told). Yes, methane is a 'greenhouse gas,' but the actual emissions are minuscule.  Along the same lines, just to blow your minds, and it's always a, 'wait, what?' moment: Wolves in the wild don't have 'packs' the way you think of them. No 'Alpha' or 'Beta' or 'Omega.' In the wild, they're family units. One breeding pair, with 1-3 generations of childruns. The idea of pack heirarchies and such came about because people did their studies on random groups of wolves put together in zoos.