Cutting-edge techniques across biology, chemistry, physics, and geology have transformed our understanding of the deep past, including the discovery of a previously unknown mass extinction. This compelling evidence, revealing a series of environmental crises resulting in the near collapse of life on Earth, illuminates our current dilemmas in exquisite detail.

The fascinating group of animals called dinosaurs became extinct some 65 million years ago (except for their feathered descendants). In their place evolved an enormous variety of land creatures, especially mammals, which in their way were every bit as remarkable as their Mesozoic cousins. The Age of Mammals, the Cenozoic Era, has never had its Jurassic Park, but it was an amazing time in earth's history, populated by a wonderful assortment of bizarre animals. The rapid evolution of thousands of species of mammals brought forth many incredible creatures—including our own ancestors.

With its quaint villages, local restaurants serving up lobster rolls, and miles and miles of warm, sandy beaches, Cape Cod, Massachusetts, is famous for being America’s carefree seaside getaway. But in August 2012, the first confirmed shark attack in almost eighty years occurred in the region. As shark sightings quickly began to increase on Cape Cod and elsewhere and large beachside billboards warning about the growing shark population became a common sight, a boogie boarder died after being attacked by a great white shark in Cape Cod’s shallow waters.

For most of us, the story of mammal evolution starts after the asteroid impact that killed the dinosaurs, but over the last 20 years, scientists have uncovered new fossils and used new technologies that have upended this story. In Beasts Before Us, paleontologist Elsa Panciroli charts the emergence of the mammal lineage, Synapsida, beginning at their murky split from the reptiles in the Carboniferous period, over 300 million years ago. They made the world theirs long before the rise of dinosaurs.

Many of us know that the Moon pulls on our oceans, driving the tides, but did you know that it smells like gunpowder? Or that it was essential to the development of science and religion? Acclaimed journalist Rebecca Boyle takes listeners on a dazzling tour to reveal the intimate role that our 4.51-billion-year-old companion has played in our biological and cultural evolution.

The Complete Book of Five Rings is an authoritative version of Musashi's classic The Book of Five Rings, translated and annotated by a modern martial arts master, Kenji Tokitsu. Tokitsu has spent most of his life researching the legendary samurai swordsman and his works, and in this book he illuminates this seminal text, along with several other works by Musashi.

Hilarious, fascinating, and a roller coaster of dizzying, historical what-ifs, Napoleon's Hemorrhoids is a potpourri for serious historians and casual history buffs. In one of Phil Mason's many revelations, you'll learn that Communist jets were two minutes away from opening fire on American planes during the Cuban missile crisis, when they had to turn back as they were running out of fuel. You'll discover that before the Battle of Waterloo, Napoleon's painful hemorrhoids prevented him from mounting his horse to survey the battlefield.

If someone were to ask Jasmine Santos to describe the last few years of her life with a single word, it would definitely be a four-letter one. After 17 years - and countless broken bones and broken promises - she knows her window to compete in figure skating is coming to a close. But when the offer of a lifetime comes in from an arrogant idiot she's spent the last decade dreaming about pushing in the way of a moving bus, Jasmine might have to reconsider everything.

The bestselling fitness book for men who want to gain 25-35 pounds of lean muscle and lose as much fat or more in just 3-5 hours per week—and without giving up delicious foods or doing grueling workouts. Is Bigger Leaner Stronger a body building book that can help you pack on brain-shrinking amounts of muscle in 30 days flat? No. Is it a fitness nutrition book full of dubious diet and exercise “hacks” and “shortcuts” for melting belly fat faster than a roided hornet? Absolutely not.

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.

Pulitzer Prize, Biography, 2016. Barbarian Days is William Finnegan's memoir of an obsession, a complex enchantment. Surfing only looks like a sport. To initiates it is something else entirely: a beautiful addiction, a demanding course of study, a morally dangerous pastime, a way of life.

The bestselling fitness book for women who want to lose up to 35 pounds of fat or more and gain whole-body muscle definition in just 3-5 hours per week—and without giving up delicious foods or doing grueling workouts.

All over America, families are investing blood, sweat, tears, and retirement savings in their children’s sports careers, all with the ultimate goal of…what exactly? A college scholarship? A professional contract? Simply the taste of victory? Through the lens of the highly competitive world of girls’ softball, Lewis reveals the youth sports industrial complex that has arisen to aggressively monetize after-school pastimes.

When Edmund Hillary first conquered Mt. Everest, Sherpa Tenzing Norgay was at his side. Indeed, for as long as Westerners have been climbing the Himalaya, Sherpas have been the unsung heroes in the background. In August 2008, when eleven climbers lost their lives on K2, the world’s most dangerous peak, two Sherpas survived. They had emerged from poverty and political turmoil to become two of the most skillful mountaineers on earth. Based on unprecedented access and interviews, Buried in the Sky reveals their astonishing story for the first time.

Destined to become a classic of adventure literature, The Last Season examines the extraordinary life of legendary backcountry ranger Randy Morgenson and his mysterious disappearance in California's unforgiving Sierra Nevada - mountains as perilous as they are beautiful. Eric Blehm's masterful work is a gripping detective story interwoven with the riveting biography of a complicated, original, and wholly fascinating man.

In this remarkable, groundbreaking audiobook, a documentarian and conservationist, determined to dispel misplaced fear and correct common misconceptions, explores in-depth the secret lives of sharks - magnificent creatures who play an integral part in maintaining the health of the world’s oceans and ultimately the planet.

In this uniquely all-encompassing book about fungi, mycologist Keith Seifert looks at a variety of different types of fungi, including those that are invisible to the naked eye, and those that live in relationship to humans, agriculture, animals, forests, cities, and more.

Strange and probabilistic, physics at the smallest scales is driving innovation and research into the nature of reality. In this audiobook, we examine the latest mind-bending studies in quantum mechanics, including theoretical mysteries such as entanglement, real-world applications, innovations in communications and computing, and more.

This Basic Physics for Beginners is the ultimate guidebook you’ll ever need to learn the basics of Physics! This comprehensive yet easy-to-follow book on the principles of Physics will make you master the subject the easiest way!

For centuries, humans ignored sound in the “silent world” of the ocean, assuming that what we couldn’t perceive, didn’t exist. But we couldn’t have been more wrong. Marine scientists now have the technology to record and study the complex interplay of the myriad sounds in the sea. Finally, we can trace how sounds travel with the currents, bounce from the seafloor and surface, bend with the temperature and even saltiness; how sounds help marine life survive; and how human noise can transform entire marine ecosystems.