Crossing Yellowstone National Park’s protective boundary, an apex predator becomes prey. These wolves don’t last long in the modern Mountain West.

Most of us are familiar with the law of unintended consequences. You set out to do something and end up causing things to happen that you did not anticipate. Like suppressing wildfire, which leads to ...

For grizzly and black bears, respectively, per-sighting values are $16 and $14, aggregate annual sighting values are $6.9 and ...