That isn't true. I have studied wolves all my life, and even depleted every single wolf book from a bunch of libraries. Yellowstone never banged the wolves. Before the EPA introduced them to its list just one year after it was formed, the Yellowstone wolf population was at the brink of extinction. In the nineties, there were two projects there to reintroduce the wolves to the area, which, in the end, proved successful. Also, the rivers didn't get dirty from the elks muddy feet. They like to eat the young saplings that oftentimes grow on the river bank. When these are destroyed, their roots stop cleaning the water, which were acting like a natural water filter. I'd continue if I weren't so tired. I'd like to help with the wolves, though. I know about some really cool things we could do together. I could even get us hooked up with DOW. Let me know if you're interested.