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.