Charles Preston
Wolf as Villain or Hero?
Controversy erupted like Old Faithful as soon as talk began about reintroducing the gray wolf to Yellowstone National Park. Unlike Old Faithful, that…
Yellowstone Grizzly Bear and Cutthroat Trout
Soon after most Greater Yellowstone grizzly bears emerge from their winter dens, cutthroat trout begin to spawn. Today, we recognize cutthroat trout spawning…
Yellowstone Grizzly Bear and Winter-killed Wildlife
Today, February 25, 2014, is a cold, snowy winter day in Yellowstone National Park and the surrounding areas. Here in Cody, Wyoming,…
Grizzly Bear Facts: Yellowstone Grizzly Bears Winter Hibernation Habitat
A few years ago, my wife, Penny, and I were hiking in the early December snow along Wood River, in the eastern…
Fieldnotes from the Greater Yellowstone Ecosystem: May 7, 2013
Greetings to all! Today is much too beautiful to be inside, but here I sit in my office awaiting an upcoming phone…
Fieldnotes from the Edge of the Wild: December 14, 2012
Responsibility and Credibility in Communicating Conservation Science to the Public Last week was typical of scientific fieldwork involving the capture and marking…