I was thinking some more about my post on woolly mammoths. That article bought into the idea that large predators will keep a herd of large herbivores bunched and on the move, which can in turn preserve and even restore a grassland ecosystem, with great effects for biodiversity and even carbon sequestration. It’s a nice idea, and incredibly cool to think about when the large herbivores are mammoths and the predators are dire wolves. But unfortunately, modern science seems to be shitting all over the idea that cows shitting all over can ever be a good thing. Here is an article from Sierra Club with the basics.