Tuesday, July 24, 10 p.m. — Probe the battle between those who depend on the Bristol Bay for salmon and those who want to dig an open-pit mine at its headwaters.

Wednesday, June 27 at 10 p.m. — Brave the baking desert with Mark Evans and Joy Reidenberg as they dissect a camel.

Friday, June 22 at 8:30 p.m. — Follows the journey of the Elwha River from the day it was dammed to the day it was set free once again.

Wednesday, June 20 at 10 p.m. — Examine one of the biggest yet most mysterious animals on Earth, the giant squid.

Wednesday, June 6 at 7:30 p.m. — Experience the true story of writer and naturalist Joe Hutto as he raises a family of turkey chicks.

Wednesday, May 30 at 9 p.m. — Find out how nature’s deadliest cocktails could be medicine’s brightest new hope.

Wednesday, May 9 at 8 p.m. — Follow two rare white lion cubs on their journey to adulthood on the South African savanna.

Wednesday, May 2 at 8 p.m. — Follows the birth and first days of several species, from marmoset to moose to elephant and gorilla.

Wednesday, April 25 at 9 p.m. — Gain a greater understanding of our nearest star–one that might help keep our planet from going dark.

Wednesday, April 18 at 8 p.m. — Watch as a romantic adventure becomes something much greater in the Frank Church–River of No Return Wilderness.