Nature

There's a new Chicago River Tour with Geoffrey Baer, but the TV program isn't the only way you can explore Chicago's vital waterway. You can also take your own audio tour of Riverwalk, enjoy 360 videos, watch an animated history of the river reversal, and more on our companion site.

Helen Macdonald turned to hawking for solace when her father died, chronicling her grief in the award-winning book H is for Hawk. Now she's training her first goshawk since then on Nature. She spoke to us about the meanings give to animals and more.

Nature's program Animal Reunions examines the bonds that can form between animals and human caregivers, reuniting orphaned or rescued animals with the people who rehabilitated them. Learn about the work of some of these conservationists.

As Phil Ponce retires from regular appearances on Chicago Tonight, watch him discuss his hobby and the deeper meaning behind it, hear him share some tips, and see the fruits of his labor around his home.

In Ireland's Wild Coast, cameraman Colin Stafford-Johnson explores the magnificent wildlife and landscape of the islands, shores, and waters of Ireland's Atlantic coast. Catch a glimpse of what awaits in the show, with some unbelievable photography. 

PBS is broadcasting live from Alaska as bears, orcas, eagles, and wolves join a bountiful summer feast when millions of salmon swim upriver to spawn. Catch some sneak peeks of pesky porcupines, wallowing walruses, and hunting humpback whales.

Joel Sartore is the creator of the Photo Ark, a 25-year project to photograph every animal species in human care. He talked to us about the role of the Photo Ark and zoos in conservation. "It’s folly to think that we can drive half of all species to extinction and not affect humanity,” he says.

Nature's Great Race follows epic mass migrations across the vast landscapes of the Arctic and southern and eastern Africa in vivid cinematography – catch a glimpse of the engrossing images here with a preview in photography before the show premieres on Wednesday, July 12.

The Great Yellowstone Thaw follows the animals of Yellowstone as they weather a 140 degree temperature change from winter to spring. Explore the majestic area of Yellowstone and its hardy creatures in stunning photography here.

Do you know how dolphins continue to surface for breath even while sleeping, why trainers use hair dryers on sea otters in aquariums, or the difficulties of beluga whale birth and calf-rearing? Shedd experts Jessica Whiton and Tim Binder have the answers.

China, Havana, the Pacific, Alaska - PBS explores them all during the Summer of Adventure. Take a sneak peek at the upcoming shows, which follow caribou in the Arctic Circle, a photographer's quest to document every species in captivity, and more.

Orchids drive people mad, from wealthy Victorian collectors to one of the most important scientists of the last few centuries. A horticulturist from the Chicago Botanic Garden explains what makes orchids unique and attempts to tease out our obsession with them.

The Sierra Nevada mountains contain the earth's largest living trees, the tallest waterfall in North America, and striking stone monoliths. Nature explores the effects of climate change on this glorious landscape.

WTTW's new web series Urban Nature explores such stories as segregating squirrels, San Francisco's 'wild plan' for safe wildlife movement through the city, and the reclamation by nature of a deserted island near Manhattan.

Tonight at 8:00 pm, "Meet the Spies" in the finale of Spy in the Wild. We talked to series producer Philip Dalton about how the cameras can capture animals' most intimate behavior.