In-depth with nature photographer Jeff Mitchum.

Jeff talks about what got him involved in taking pictures and his career choices moving from being a National Geographic photographer to becoming independent and working on the images he loves.

Jeff discusses his approach to capturing the real- ife and beauty of wildlife.

You learn about what Jeff has learned about wildlife, nature and the environment, and where his spirit to honor and save the earth is leading him.

Based on years of research into ape intelligence, Dr. Rumbaugh shares his quest to unlock the secrets of our nearest animal relatives.

Dr. Duane Rumbaugh continues his discussion of the discoveries into the realms of ape abilities, sheds light upon the scientific process, and the emerging new understanding of our relationship with these amazing beings.

Dr. Rumbaugh takes us to the current state of the art in ape intelligence and discusses his plans for the Great Ape Trust in Iowa, where the insights learned may be applied in a more natural setting.

Everyone knows we can communicate with animals. But perhaps we've not really begun to understand what they are telling us. An in-depth discussion with Marta Williams who has been developing, writing about and teaching intuitive communication techniques with animals of all sizes and kinds.

Dr. Marc Bekoff is one of the world's most respected ethologists. For over 30 years he has been researching the complex nature of animal intelligence and emotions. In this in-depth interview, we begin by taking a look at how the debate over anthropomorphism has shaped our view of creatures large and small.

Our conversation continues as we explore some of the unique ways in which animals are perceived to express a variety of emotional responses including happiness, grief, awe, embarrassment.

And we conclude our conversation with Dr. Bekoff as we discuss what the world could be like if and when human societies acknowledge that animals are far more conscious of their world than we have given them credit for.

Karsten Heuer and his wife Leanne set off on a 5-month, 1000-mile journey to walk in the footprints of the Porcupine Caribou herd, from Canada to the Arctic National Wildlife Refuge and back.

It is one of the 21st century's most significant adventures, as captured in Karsten Heuer's book, "Being Caribou."  Come along to learn what "Being Caribou" is all about.