America’s Yellowstone
2007
Watershed: Exploring a New Water Ethic for the New West
2012
The Beginning of Life 2: Outside
2020
The Secrets of the Snakes
2016
John Muir in the New World
2011
Sex, Lies and Butterflies
2018
Eternal Enemies: Lions and Hyenas
1992
These Birds Were Made for Walking
2020
Climbing Redwood Giants
2009
Titus: The Gorilla King
2008
The Enchanted Forest of the Pygmy Hippopotamus
1998
March of the Penguins
2005
