National Wildlife Federation

A shy butterfly expert embarks on a dangerous, life-changing trek through one of America’s greatest unprotected wildlands at the urging of his...

Release : 2020.03.28
Popularity : 5.061

From the banks of the Bahamas to the seas of Argentina, we go underwater to meet dolphins. Two scientists who study dolphin communication and...

Release : 2000.04.14
Popularity : 1.48

A look at the great wolf debate with comments and views from people on both sides. It also contains footage of Natives dressing up & doing tribal...

Release : 1999.03.01
Popularity : 0.872

Coral Reef Adventure follows the real-life expedition of ocean explorers and underwater filmmakers Howard and Michele Hall. Using large-format...

Release : 2003.02.14
Popularity : 1.956

From polar bears in the arctic tundra to black bears in the Northern Rockies, you'll see some of the most spectacular footage ever shot of these...

Release : 2004.12.03
Popularity : 0.757

Jeff Corwin searches for the biggest monsters that ever walked the Earth, while studying their modern relatives. However, he must be careful, for...

Release : 2003.03.09
Popularity : 0.203

This first hand account follows the re-introduction of the wolves into America's greatest national park. Once near total extermination, the...

Release : 1996.11.03
Popularity : 0.001