Imagine raising an orphaned bear cub, carefully reintroducing her to the wild, then being welcomed back, almost daily, to observe her wild world for more than 17 years. Imagine visiting her in her feeding spots, watching her with her mates and her young, peering into her den, and, over time, observing the lives of all the other wild bears in her territory and surrounding ones. That is what happened to Ben Kilham.

Four decades ago, the areas around Yellowstone and Glacier National Parks sheltered the last few hundred surviving grizzlies in the lower 48 states. Protected by the Endangered Species Act, their population has surged to more than 1,500, and this burgeoning number of grizzlies now collides with the increasingly populated landscape of the 21st-century American West. Montana journalist Robert Chaney chronicles the resurgence of this charismatic species against the backdrop of the country's long history with the bear.

John Muir (1838 -1914) was an influential Scottish-American naturalist, author, environmental philosopher, and early advocate for the preservation of wilderness areas in the United States. In the late 1800s, Muir made several trips to the relatively unexplored territory of Alaska. Travels in Alaska, originally published in 1915, describes the beauty of the Alaskan wilderness and its inhabitants as observed during his travels between 1879 and 1890. In poetic prose, he describes the area’s magnificent glaciers and its animals like bears, bald eagles, wolves and whales.

First published in 1949 and praised in the New York Times Book Review as "full of beauty and vigor and bite", A Sand County Almanac combines some of the finest nature writing since Thoreau with an outspoken and highly ethical regard for America's relationship to the land.

A riveting history of America's most beautiful natural resources, The Quiet World documents the heroic fight waged by the U.S. federal government from 1879 to 1960 to save wild Alaska - ;Mount McKinley, the Tongass and Chugach national forests, Gates of the Arctic, Glacier Bay, Lake Clark, and the Coastal Plain of the Beaufort Sea, among other treasured landscapes - from the extraction industries.

In Eager, environmental journalist Ben Goldfarb reveals that our modern idea of what a healthy landscape looks like and how it functions is wrong, distorted by the fur trade that once trapped out millions of beavers from North America's lakes and rivers. The consequences of losing beavers were profound: streams eroded, wetlands dried up, and species from salmon to swans lost vital habitat. Today, a growing coalition of "Beaver Believers" recognizes that ecosystems with beavers are far healthier, for humans and non-humans alike, than those without them.

In the past two decades, our understanding of the navigational and physiological feats that enable birds to cross immense oceans, fly above the highest mountains, or remain in unbroken flight for months at a stretch has exploded. What we've learned of these key migrations is nothing short of extraordinary. This breathtaking work of nature writing also introduces listeners to those scientists, researchers, and bird lovers trying to preserve global migratory patterns in the face of climate change and other environmental challenges.

How do trees live? Do they feel pain or have awareness of their surroundings? Research is now suggesting trees are capable of much more than we have ever known. In The Hidden Life of Trees, forester Peter Wohlleben puts groundbreaking scientific discoveries into a language everyone can relate to.

>When South African conservationist Lawrence Anthony was asked to accept a herd of "rogue" wild elephants on his Thula Thula game reserve in Zululand, his common sense told him to refuse. But he was the herd's last chance of survival: they would be killed if he wouldn't take them. In order to save their lives, Anthony took them in. In the years that followed he became a part of their family. And as he battled to create a bond with the elephants, he came to realize that they had a great deal to teach him about life, loyalty, and freedom.

Jack Olsen's true account, traces the causes of the tragic night in August 1967 when two separate and unrelated campers, a distance apart, were savagely mangled and killed by enraged bears.

The definitive, personal account of the deadliest season in the history of Everest by the acclaimed journalist and author of Into the Wild. Read by the author. Also, hear a Fresh Air interview with Krakauer conducted shortly after his ordeal.

In this riveting real-life adventure, Mark and Delia Owens tell the dramatic story of their last years in Africa, fighting to save elephants, villagers, and - in the end - themselves. The award-winning zoologists and pioneering conservationists describe their work in the remote and ruggedly beautiful Luangwa Valley, in northeastern Zambia. There they studied the mysteries of the elephant population’s recovery after poaching, discovering remarkable similarities between humans and elephants.

For listeners of Jane Goodall and Lawrence Anthony, this up-close, captivating look at bears traces our complex relationship to the animal throughout history. On Being a Bear draws on history, legends, scientific studies, and the author’s 30 years of observing bears around the world to offer a richly detailed biography of these iconic animals, including the many ways bears have figured in our lives and imaginations.

A hilarious, heartwarming, and heartbreaking memoir by the chief wildlife ranger in the number one most popular family vacation destination in the USA, the Great Smoky Mountains National Park. For over 30 years, Kim DeLozier acted as a referee in the wild, trying to protect millions of park visitors from one of the densest populations of wild black bears in America - and the bears from tourists who get too close.

Intelligent, majestic, and loyal, with lifespans matching our own, elephants are among the greatest of the wonders gracing the African wilds. Yet in the 1970s and 1980s, about 1,000 of these captivating creatures were slaughtered in Zambia each year, killed for their valuable ivory tusks. When biologists Mark and Delia Owens, residing in Africa to study lions, found themselves in the middle of a poaching fray, they took the only side they morally could: that of the elephants.

How do trees live? Do they feel pain or have awareness of their surroundings? Research is now suggesting trees are capable of much more than we have ever known. In The Hidden Life of Trees, forester Peter Wohlleben puts groundbreaking scientific discoveries into a language everyone can relate to.

After nearly a decade overseas as a war reporter, the acclaimed journalist Dahr Jamail returned to America to renew his passion for mountaineering, only to find that the slopes he had once climbed have been irrevocably changed by climate disruption. In response, Jamail embarks on a journey to the geographical front lines of this crisis - from Alaska to Australia’s Great Barrier Reef, via the Amazon rainforest - in order to discover the consequences to nature and to humans of the loss of ice.

Best-selling author Brian Fagan brings early humans out of the deep freeze with his trademark mix of erudition, cutting-edge science, and vivid storytelling. Cro-Magnon reveals human society in its infancy, facing enormous environmental challenges - including a rival species of humans, the Neanderthals. For ten millennia, Cro-Magnons lived side by side with Neanderthals, an encounter that Fagan fills with drama.

In this inspiring manifesto, an internationally renowned ecologist makes a clear case for why protecting nature is our best health insurance, and why it makes economic sense.

For millennia, lions, tigers, and their man-eating kin have kept our dark, scary forests dark and scary, and their predatory majesty has been the stuff of folklore. But by the year 2150 big predators may only exist on the other side of glass barriers and chain-link fences. Their gradual disappearance is changing the very nature of our existence. We no longer occupy an intermediate position on the food chain; instead we survey it invulnerably from above - so far above that we are in danger of forgetting that we even belong to an ecosystem.

The Galapagos were once known to the sailors and pirates who encountered them as Las Encantadas: the enchanted islands, home to exotic creatures and dramatic volcanic scenery. In The Galapagos, science writer Henry Nicholls offers a lively natural and human history of the archipelago, charting its evolution from deserted wilderness to scientific resource (made famous by Charles Darwin) and global ecotourism hot spot.

Forget the Kama Sutra. When it comes to inventive sex acts, just look to the sea. There we find the elaborate mating rituals of armored lobsters; giant right whales engaging in a lively threesome while holding their breath; full-moon sex parties of groupers; and daily mating blitzes by blueheaded wrasse. Deep-sea squid perform inverted 69s while hermaphrodite sea slugs link up in giant sex loops.

From one of the finest scientists and writers of our time comes an engaging record of a life spent in close observation of the natural world, one that has yielded marvelous, mind-altering insight and discoveries. In essays that span several decades, Bernd Heinrich finds himself at his beloved camp in Maine, plays host to annoying visitors from Europe (the cluster fly) and more helpful guests from Asia (ladybugs), and unravels the far-reaching ecological consequences of elephants in Botswana bruising mopane trees.

More than 12,000 years ago, in one of the greatest triumphs of prehistory, humans colonized North America, a continent that was then truly a new world. Just when and how they did so has been one of the most perplexing and controversial questions in archaeology.

The history of the Great Warming of a half millennium ago suggests that we may yet be underestimating the power of climate change to disrupt our lives todayand our vulnerability to drought, writes Fagan, is the silent elephant in the room.

Part memoir, part scientific investigation, Racing the Clock is the book biologist and natural historian Bernd Heinrich has been waiting his entire life to write. A dedicated and accomplished marathon (and ultra-marathon) runner who won his first marathon at age 39, Heinrich looks deeply at running, aging, and the body, exploring the unresolved relationship between metabolism, diet, exercise, and age. Why do some bodies age differently than others? How much control do we have over that process, and what effect, if any, does being active have?

Preeminent paleoanthropologist Meave Leakey brings us along on her remarkable journey to reveal the diversity of our early pre-human ancestors and how past climate change drove their evolution. She offers a fresh account of our past, as recent breakthroughs have allowed new analysis of her team’s fossil findings and vastly expanded our understanding of our ancestors. Meave’s own personal story is replete with drama, from thrilling discoveries on the shores of Lake Turkana to run-ins with armed herders and every manner of wildlife, to raising her children....

From the author of Apocalyptic Planet, an unsparing, vivid, revelatory travelogue through prehistory that traces the arrival of the First People in North America 20,000 years ago and the artifacts that enable us to imagine their lives and fates. This book upends our notions of where these people came from and who they were.

Musician and naturalist Bernie Krause is one of the world's leading experts in natural sound, and he's spent his life discovering and recording nature's rich chorus. Searching far beyond our modern world's honking horns and buzzing machinery, he has sought out the truly wild places that remain, where natural soundscapes exist virtually unchanged from when the earliest humans first inhabited the earth.

Some people insist that culture is strictly a human feat. What are they afraid of? This book looks into three cultures of other-than-human beings in some of Earth's remaining wild places. It shows how if you're a sperm whale, a scarlet macaw, or a chimpanzee, you too experience your life with the understanding that you are an individual in a particular community. You too are who you are not by genes alone; your culture is a second form of inheritance. And your culture, too, changes and evolves.