NOVA

1974 · Director

National Geographic Explorer

1985 · Writer

America's National Parks

2015 · Writer

Amazing Planet

2007 · Writer

Treasure Seekers

2000 · Writer

Secret Life of Predators

2013 · Writer

Africa's Lost Eden

2010 · Writer

When Crocs Ate Dinosaurs

2010 · Writer

Battle of the Swamp Dragons

2017 · Writer

Mysteries of The Holy Arks

2018 · Writer

Red Panda: World's Cutest Animal

2017 · Writer

Last Stand of the Great Bear

2004 · Writer

Amerikas Naturwunder

2015 · Director

Ancient Oceans

2019 · Writer

Ice Age Death Trap

2012 · Director

Bizarre Dinosaurs

2009 · Writer

Treasure Seekers: Tibet's Hidden Kingdom

2001 · Writer

Prehistoric Worlds

2020 · Writer

Devils of the Deep

2003 · Writer

Season of the Salmon

1998 · Writer

Land of the Anaconda

1998 · Writer

Kangaroo Comeback

1998 · Writer

Eden at the End of the World

2008 · Writer

In the Grip of Evil

1997 · Writer

Deep Sea Killers

2017 · Writer

Falklands: Flying Devils

2000 · Writer

Whales in Crisis

2004 · Writer

Walking with Lions

2004 · Writer

Dino Death Trap

2007 · Writer

The Search for Dracula

1996 · Writer