In addition to their backpacking trip to Fairyland Basin, Steve, Eric, and Chris did a couple of day hikes in Yellowstone National Park. One was along the Yellowstone River near Canyon. Before they'd gone very far, they heard a yipping of canines (coyotes? wolves?) then heard something crashing through the brush on a hillside. This elk cow and her tiny calf were rushing downhill toward them, desperate to escape whatever was chasing them.
In the second photo (below), the calf's head is peeking out from behind a tree. Apparently the pursuers sensed man's presence and took off. The elk soon followed suit, since she didn't trust that human smell, either.
To view more camera critters, click here.