From the Sierra Club:
Rick McIntyre spent last May doing what he has done nearly every morning for the past 26 years: observing wolves in Yellowstone National Park. It was a special time. One of the Junction Butte pack’s breeding females, 907, had recently given birth, and her eight pups had emerged from the den. Often, up to 300 people joined McIntyre on the campground road where he set up his spotting scope so they could watch the pups nursing, wrestling, and tumbling about with the yearlings.
“Seeing the wolf family at their den was likely the best wildlife viewing opportunity in the world at the time,” recalls McIntyre, who has written several books based on his careful observations of Yellowstone’s wolves.