Unless the intelligent Velociraptors had a "World War 3" that featured a massive, targeted asteroid strike near what's now Mexico, I think there's geological ev

Unless the intelligent Velociraptors had a "World War 3" that featured a massive, targeted asteroid strike near what's now Mexico, I think there's geological evidence for non-intelligent causes for a lot of these. (Or, building on this article, did the Trilobite People trigger the massive Siberian lava flows that ended the Permian?) Still a fascinating question, mind you! (But honestly, I'm dubious that anything humanity could do today would lead to a Permian-scale mass extinction. That one was remarkable.)