A record number of Yellowstone wolves have been killed. Conservationists are worried

Gray Wolves-Protections
This Nov. 7, 2017, file photo, provided by the National Park Service shows a gray wolf in Yellowstone National Park, Wyo. (Jacob W. Frank/National Park Service via AP, File)

This winter saw the most wolves from Yellowstone National Park killed in about a century. That’s because states neighboring the park changed hunting rules in an effort to reduce the animals’ numbers. At the same time, wolf biologists inside the park are finding out what losing the animals means.

“This was the winter of my discontent,” Yellowstone National Park senior wolf biologist Doug Smith says while driving over a washboarded dirt road near the park’s northern border.

“The park line’s right over here and that’s where a lot of the controversy occurred,” he says, gesturing to the invisible edge of the park just in front of us.