17 Kills in Two Months: A Cougar’s Summer Diet in Yellowstone National Park

I met Dr. Daniel Stahler on a dirt road overlooking the town of Gardiner, Montana, situated right smack on the 45th parallel. Dr. Stahler, a veteran wildlife biologist who first came to the park in 1997 to participate in its wolf program, was about to make a trek into what he calls a “cluster site” in the developing heat of an early July morning. Dr. Stahler was gracious enough to let me tag along on what would be the last such...