This Green Earth

We go deep into the soil to discuss different earthworms, including nightcrawlers with Dr. Josef Gorres, a professor of ecological soil management at the University of Vermont.

University of Utah entomologist Dr. Jack Longino shares stories about ant species he's discovered deep in tropical jungles to his own backyard in Salt Lake City.

University of Utah entomologist Dr. Jack Longino walks us through the unique biology and community dynamics of ants. Then, Dr. Josef Gorres, a professor of ecological soil management at the University of Vermont, digs deep into the world of earthworms.

Ecologist, author, and storyteller Mark Elbroch shares an intimate account of one of the world’s most magnificent and misunderstood terrestrial mammals, the mountain lion. (01:26)Then, National Geographic Explorer and photographer Anand Varma illuminates the beautiful and complex layers of the natural world that are otherwise hidden from view. (29:10)

National Geographic Explorer and Photographer Anand Varma walks us through his work to illuminate the beautiful and complex layers of the natural world that are otherwise hidden from view.

What does it mean to have the "Heart of a Lion"? Biologist, author, and storyteller, Mark Elbroch shares an intimate account of one of the world’s most magnificent and misunderstood terrestrial mammals, the mountain lion.

National Geographic Explorer Dr. Heather Lynch shares her experiences studying penguins in Antarctica.

In his new book, The Return of the Oystercatcher: Saving Birds to Save the Planet, New York Times best-selling author Scott Weidensaul explores recovery efforts across the globe that are helping bird populations thrive.

Ornithologist and New York Times bestselling author Scott Weidensaul discusses his new book "The Return of the Oystercatcher: Saving Birds to Save the Planet," exploring how local and global conservation efforts are helping reverse declining bird populations. Then, National Geographic Explorer Dr. Heather Lynch shares her groundbreaking work using satellite imagery to study penguins and other seabirds in Antarctica.

Learning how to live a more sustainable life with Samuel McMullen the CEO and co-founder of ZeroWaste.Org.