Elk Country

Deep in the Heart: A Texas Wildlife Story

2022

Animal Olympians

1980

Wildlife in the Rockies

1957

When Whales Walked: Journeys in Deep Time

2019

Bloodsuckers

2000

El viaje del emperador

2005

Escape from Extinction: Rewilding

2024

The Odyssey Of Felines

2015

Mémoires de volcans

2012

Parrot Confidential

2013