"The oceans have always shaped human lives," writes marine biologist Helen Scales in her vibrant new book The Brilliant Abyss, but the surface and the very edges have so far mattered the most. "However, one way or another, the future ocean is the deep ocean." A golden era of deep-sea discovery is underway. Revolutionary studies in the deep are rewriting the very notion of life on Earth and the rules of what is possible. In the process, the abyss is...

"From New York Times bestselling author Susan Casey, an awe-inspiring portrait of the mysterious world beneath the waves, and the men and women who seek to uncover its secrets For all of human history, the deep ocean has been a source of wonder and terror, an unknown realm that evoked a singular, compelling question: What's down there? Unable to answer this for centuries, people believed the deep was a sinister realm of fiendish creatures and deadly...

"Jay Gardiner has given himself a fool's errand--to find the remains of his deceased father in the Pacific Ocean off the coast of Monastery Beach. He knows it's a long shot, but Jay feels it's the only way for him to lift the weight of guilt he has carried since his dad's death by suicide the previous year. The dive begins well enough, but the sudden appearance of a giant squid puts Jay in very real jeopardy, made infinitely worse by the arrival of...

Explores how killer whales have been moving into the Arctic to hunt the same prey on which polar bears survive.

The Sacred Island takes viewers to Zanzibar, off the East African coast, where local villagers fought a resort development in their pristine reefs and lagoons through a combination of activism, education, and regulation.

This is the remarkable story of how local fishing people in Baja California, Mexico, stopped hunting “devil-fish” - actually gray whales - and instead developed a whale-watching co-op that now caters to tourists from all over the world. They’re also getting rich by setting fishing rules for themselves that are stricter than the government regulations.

The PBS Documentary Shark Reef profiles innovative efforts to protect sharks from the devastating effects of the global shark fin trade.

In a two-part special, Carl Safina goes to sea with some of the last remaining swordfish harpooners to experience firsthand one of the world’s most sustainable fisheries and to find out why swordfish are the world’s best big-fish comeback story.

The conclusion of this two-part episode examines the huge project now restoring the Nisqually River, from its source on Mount Rainier to the estuary in Puget Sound. Led by the Nisqually Indian tribe, the restoration aims to fill the river once again with abundant, magnificent wild salmon.