Yellowstone National Park was once home to an abundance of wild wolves - but park rangers killed the last of their kind in the 1920s. Decades later, the rangers brought them back, with the first wolves arriving from Canada in 1995. This is the incredible true story of one of those wolves.

Before men ruled the earth, there were wolves. Once abundant in North America, these majestic creatures were hunted to near extinction in the lower 48 states by the 1920s. But in recent decades, conservationists have brought wolves back to the Rockies, igniting a battle over the very soul of the West. With novelistic detail, Nate Blakeslee tells the gripping story of one of these wolves, O-Six, a charismatic alpha female named for the year of her birth.

When Rick Lamplugh reports for work at the historic Lamar Buffalo Ranch on New Year's Eve, he has one goal: to learn as much as possible about the ecology of the Lamar Valley and how wolves fit in. He has three frigid months to explore on skis and snowshoes, to observe with all his senses, and to listen to and talk with experts. Lamplugh's story takes you with him as he watches winter-hungry elk and bison migrate to the Lamar Valley to graze. Wolves, coyotes, and mountain lions stalk the grazers while eagles, ravens, and magpies wait to scavenge.

In the late 1940s, a small pack of wolves crossed the ice of Lake Superior to the island wilderness of Isle Royale, creating a perfect "laboratory" for a long-term study of predators and prey. As the wolves hunted and killed the island's moose, a young graduate student named Dave Mech began research that would unlock the mystery of one of nature's most revered (and reviled) animals - and eventually became an internationally renowned and respected wolf expert. This is the story of those early years.

Carter Niemeyer has followed wolves - and captured many - since he helped reintroduce them in the Northern Rockies in the mid-1990s. In his second memoir, Wolf Land, he takes us across the rugged West as he tracks wolves, shares in their lives, and seeks middle ground for these iconic animals, both on the land and in our hearts.

His plan was to stay in Iowa, maybe get a job counting duck, or do a little farming. But events conspired to fling Carter Niemeyer westward and straight into the jaws of wolves. From his early years wrangling ornery federal trappers, eagles, and grizzlies, to winning a skinning contest that paved the way for wolf reintroduction in the Northern Rockies, Niemeyer reveals the wild and bumpy ride that turned a trapper - a killer - into a champion of wolves.

America's Great Plains once possessed one of the grandest wildlife spectacles of the world, equaled only by such places as the Serengeti, the Masai Mara, or the veld of South Africa. Pronghorn antelope, gray wolves, bison, coyotes, wild horses, and grizzly bears: less than 200 years ago these creatures existed in such abundance that John James Audubon was moved to write "it is impossible to describe or even conceive the vast multitudes of these animals".

Both a captivating narrative and a book of environmental and historical significance, American Buffalo tells us as much about ourselves as Americans as it does about the creature who perhaps best of all embodies the American ethos.

In 1908, near Folsom, New Mexico, a cowboy discovered the remains of a herd of extinct giant bison. By examining flint points embedded in the bones, archeologists later determined that a band of humans had killed and butchered the animals 12,450 years ago. This discovery vastly expanded America's known human history but also revealed the long-standing danger Homo sapiens presented to the continent's evolutionary richness. Distinguished scholar Dan Flores's ambitious history chronicles the epoch in which humans and animals have coexisted in the "wild new world" of North America.

During a time when most wild animals are experiencing decline in the face of development and climate change, the intrepid mountain lion - also known as a puma, a cougar, and by many other names - has experienced reinvigoration as well as expansion of territory. What makes this cat, the fourth carnivore in the food chain - just ahead of humans - so resilient and resourceful? And what can conservationists and wild life managers learn from them about the web of biodiversity that is in desperate need of protection?

An enthralling account of a modern voyage of discovery as we meet the clever, social birds of prey called caracaras, which puzzled Darwin, fascinate modern-day falconers, and carry secrets of our planet's deep past in their family history.

After living and working for three winters in Yellowstone's Lamar Valley, Rick and his wife, Mary, long to go deeper into Yellowstone. Finally, they trust Yellowstone's pull, leave the security of their Oregon life, and relocate to Gardiner, just outside the park's north gate. Their year of immersion begins. Deep into Yellowstone takes you along as Rick and Mary cross-country ski, hike, bicycle, canoe, and backpack through four seasons of Yellowstone's grandeur. If you want to visit, learn about, or protect our nation's first national park, this audiobook is for you.

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.

More than half a century ago, the naturalist Farley Mowat accepted an assignment to investigate why wolves were killing Arctic caribou. Mowat’s account of the summer he lived in the frozen tundra alone – studying the wolf population and developing a deep affection for these wild creatures (who were no threat to caribou or man) – is today celebrated as a classic of nature writing, at once a tale of remarkable adventure and an indelible record of the myths and magic of wolves.

The real stories behind the scenery of America’s national parks. For 12 years, Andrea Lankford lived in the biggest, most impressive national parks in the world, working a job she loved. She chaperoned baby sea turtles on their journey to sea. She pursued bad guys on her galloping patrol horse. She jumped into rescue helicopters bound for the heart of the Grand Canyon. She won arguments with bears. She slept with a few too many rattlesnakes. Hell yeah, it was the best job in the world! Fortunately, Andrea survived it.

Before men ruled the earth, there were wolves. Once abundant in North America, these majestic creatures were hunted to near extinction in the lower 48 states by the 1920s. But in recent decades, conservationists have brought wolves back to the Rockies, igniting a battle over the very soul of the West. With novelistic detail, Nate Blakeslee tells the gripping story of one of these wolves, O-Six, a charismatic alpha female named for the year of her birth.

Coyote America is both an environmental and a deep natural history of the coyote. It traces both the five-million-year-long biological story of an animal that has become the "wolf" in our backyards and its cultural evolution from a preeminent spot in Native American religions to the hapless foil of the Road Runner. A deeply American tale, the story of the coyote in the American West and beyond is a sort of Manifest Destiny in reverse.

America's Great Plains once possessed one of the grandest wildlife spectacles of the world, equaled only by such places as the Serengeti, the Masai Mara, or the veld of South Africa. Pronghorn antelope, gray wolves, bison, coyotes, wild horses, and grizzly bears: less than 200 years ago these creatures existed in such abundance that John James Audubon was moved to write "it is impossible to describe or even conceive the vast multitudes of these animals".

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.

Late one June night in 2011, a large animal collided with an SUV cruising down a Connecticut parkway. The creature appeared as something out of New England's forgotten past. Beside the road lay a 140-pound mountain lion. Speculations ran wild, the wildest of which figured him a ghostly survivor from a bygone century when lions last roamed the eastern United States. But a more fantastic scenario of facts soon unfolded.

That the dog evolved from the wolf is an accepted fact of evolution and history, but the question of how wolf became dog has remained a mystery, obscured by myth and legend. How the Dog Became the Dog posits that dog was an evolutionary inevitability in the nature of the wolf and its human soul mate. The natural temperament and social structure of humans and wolves are so similar that as soon as they met on the trail they recognized themselves in each other.

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.

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.

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?

American Sniper meets Jaws in this gripping true account of the deadliest animal of all time, the Champawat Tiger - responsible for killing more than 400 humans in Northern India and Nepal in the first decade of the 20th century - and the legendary hunter who finally brought it down.

This guide to traditional bowhunting with a longbow or recurve combines the best of both worlds for beginners and veteran bowhunters. How-to chapters share hard-earned wisdom that will help you perfect your skills and get close to game, while engaging stories tell of the authors experiences hunting white-tailed deer in the east, chasing big game in the American West, and trekking to South Africa in search of Greater Kudu and other plains game.

Birds are highly intelligent animals, yet their intelligence is dramatically different from our own and has been little understood. As we learn more about the secrets of bird life, we are unlocking fascinating insights into memory, relationships, game theory, and the nature of intelligence itself. The Thing with Feathers explores the astonishing homing abilities of pigeons, the good deeds of fairy-wrens, the influential flocking abilities of starlings, the deft artistry of bowerbirds, the extraordinary memories of nutcrackers, and other mysteries.

Richard Louv's landmark book, Last Child in the Woods, inspired an international movement to connect children and nature. Now Louv redefines the future of human-animal coexistence. Our Wild Calling explores these powerful and mysterious bonds and how they can transform our mental, physical, and spiritual lives, serve as an antidote to the growing epidemic of human loneliness, and help us tap into the empathy required to preserve life on Earth.

Horses have a story to tell - one of resilience, sociability, and intelligence and of partnership with human beings. In The Horse, journalist and equestrienne Wendy Williams brings that story brilliantly to life. Williams chronicles the 56-million-year journey of horses as she visits with experts around the world, exploring what our biological affinities and differences can tell us about the bond between horses and humans and what our longtime companions might think and feel.

When 25-year-old Harry Walker was killed by a bear in Yellowstone Park in 1972, the civil trial prompted by his death became a proxy for bigger questions about American wilderness management that had been boiling for a century. At immediate issue was whether the Park Service should have done more to keep bears away from humans, but what was revealed as the trial unfolded was just how fruitless our efforts to regulate nature in the parks had always been.