Episode 9: Notable Naturalists: The Murie Brothers

You've heard of people like John James Audobon, John Muir, Rachel Carlson and Henry David Thoreau, but how much do you know about Olaus and Adolph Murie?  These two brothers from Moorhead, MN - and their wives - had a profound impact on preserving wilderness, expanding many of our national parks and managing the wildlife who live there.