Charles Robert Darwin was an English naturalist, geologist, and biologist, best known for his contributions to the science of evolution. He established that all species of life have descended over time from common ancestors and, in a joint publication with Alfred Russel Wallace, introduced his scientific theory that this branching pattern of evolution resulted from a process that he called natural selection, in which the struggle for existence has a similar effect to the artificial selection involved in selective breeding.

Mark Twain Samuel Clemens the greatest humorist America has produced. Samuel Clemens, Mark Twain, whatever name you want to call him, was a complex individual who was moody and had a dark side but never showed it to his audience because he needed their buy-in for him to make money...You can get the most complete information about this great author by listening to his autobiography. So you can understand the life, thoughts, and ideas of a great writer. Listen to Mark Twain biography right now!

Thomas Jefferson was one of the men who helped to bring the United States into being, and he shepherded the country through some of the most dynamic political years in its history. It is possible that without his brilliance, the fledgling democracy, the first in the world since the end of Ancient Greece, may not have survived its first few trials by fire.

At least as far back as the ancient myth of Icarus, humans longed to fly - but it wasn't until December 17, 1903, on the windy dunes of Kitty Hawk, North Carolina, that the dream finally came true. And it was all thanks to Orville and Wilbur Wright, two former bicycle mechanics who built their first toy plane - a rubber-band powered rotary - when they were just children.

The Wrights' longest flight in 1903 covered 852 feet and lasted 59 seconds. In 1905, Wilbur flew 24 miles in 38 minutes and the issue was no longer how to fly but how to cash in. Their effort to exploit their invention is a suspense story of the best kind; their voyage into flight and into American history is a gripping tale from takeoff to landing.

Newbery Award-winner Gary Paulsen's best-known book comes to audio in this breathless, heart-gripping drama about a boy pitted against the wilderness with only a hatchet and a will to live. On his way to visit his recently divorced father in the Canadian mountains, thirteen-year-old Brian Robeson is the only survivor when the single-engine plane crashes. His body battered, his clothes in shreds, Brian must now stay alive in the boundless Canadian wilderness.

Sam Gribley is terribly unhappy living in New York City with his family, so he runs away to the Catskill Mountains to live in the woods - all by himself. With only a penknife, a ball of cord, 40 dollars, and some flint and steel, he intends to survive on his own. Sam learns about courage, danger, and independence during his year in the wilderness, a year that changes his life forever.

They have always scared him in the past - the Rangers, with their dark cloaks and shadowy ways. The villagers believe the Rangers practice magic that makes them invisible to ordinary people. And now 15-year-old Will, always small for his age, has been chosen as a Ranger's apprentice. What he doesn't yet realize is that the Rangers are the protectors of the kingdom. Highly trained in the skills of battle and surveillance, they fight the battles before the battles reach the people. And as Will is about to learn, there is a large battle brewing.

Ghost. Lu. Patina. Sunny. Four kids from wildly different backgrounds with personalities that are explosive when they clash. But they are also four kids chosen for an elite middle school track team - a team that could qualify them for the Junior Olympics if they can get their acts together. They all have a lot to lose, but they also have a lot to prove, not only to each other, but to themselves.

In the beginning.... Three brothers - Gabriel, Michael, and Lucifer. Royalty. Archangels. United in devotion to their father and all his works. But when Lucifer learns of their father’s latest creation - a new race, fashioned from crude matter and yet made in his image - he is consumed with resentment. Why have he and his angelic kind been overlooked? After a bitter confrontation, Lucifer is cast out, doomed to an eternity of exile and punishment. Unrepentant, he vows he won’t suffer alone. Mankind has made a powerful enemy - one determined to lure it into darkness and torment....

With the same heightened suspense and intrigue that made her Shadow Children,/i> books - including Among the Hidden - best-sellers, acclaimed young adult author Margaret Peterson Haddix presents the first entry in a thrilling new series. Thirteen years ago, a plane materialized out of thin air with 36 babies on board and no one at the controls. Jonah and Chip, passengers of that mysterious vessel, are now caught in the middle of a deadly struggle between the FBI and a sinister, unseen force.

Cat Anderson doesn’t want much out of life. Give her a circle of friends to giggle with, a few cute boys to flirt with, and she is good to go! She is perfectly content...until a scheduling mishap on her first day of 8th grade places her in a culinary arts class. Food, it turns out, is a very big deal. In her family there is a secret, too big to stay hidden any longer. A secret too fantastic to be real. Something happens when Cat bakes. Something impossible. Can it be true? Or is it bake believe?

At stake in 1896 was the new idea that some landscapes should be collectively, permanently owned by a democratic government. Although many people today think of public lands as an American birthright, their very existence was then in doubt and dependent on a merger of the talents of these two men. Natural Rivals examines a time of environmental threat and political dysfunction not unlike our own and reveals the complex dynamic that gave birth to America’s rich public lands legacy.

Seventeen-year-old witch Desiree Campbell tries to cast a spell to go to Miami for spring break.... But she ends up in Cuba a hundred years in the past. The year is 1898. The Spanish-American War rages. Demons thrive in the city, preying on humans. Desi is caught between the war of mortals and the war of monsters.

When four strange, and strangely talented, youngsters are brought to Winding Circle by master sorcerer Niko they find themselves drawn together in a Circle of Magic - a circle that binds them despite their differences.

My Big TOE: Awakening, written by a nuclear physicist in the language of contemporary culture, unifies science and philosophy, physics and metaphysics, mind and matter, purpose and meaning, the normal and the paranormal. The entirety of human experience (mind, body, and spirit) including both our objective and subjective worlds is brought together under one seamless scientific understanding.

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

Richard Dawkins' brilliant reformulation of the theory of natural selection has the rare distinction of having provoked as much excitement and interest outside the scientific community as within it. His theories have helped change the whole nature of the study of social biology, and have forced thousands to rethink their beliefs about life.

How the Earth Works takes you on an astonishing journey through time and space. In 48 lectures, you will look at what went into making our planet - from the big bang, to the formation of the solar system, to the subsequent evolution of Earth.

We are in the midst of a global mental health crisis, and mental illnesses are on the rise. But what causes mental illness? And why are mental health problems so hard to treat? Drawing on decades of research, Harvard psychiatrist Dr. Chris Palmer outlines a revolutionary new understanding that for the first time unites our existing knowledge about mental illness within a single framework: mental disorders are metabolic disorders of the brain. Brain Energy will transform the field of mental health, and the lives of countless people around the world.

Astrophysicist Neil deGrasse Tyson has attracted one of the world’s largest online followings with his fascinating, widely accessible insights into science and our universe. Now, Tyson invites us to go behind the scenes of his public fame by unveiling his candid correspondence with people across the globe who have sought him out in search of answers. In this hand-picked collection of 100 letters, Tyson draws upon cosmic perspectives to address a vast array of questions about science, faith, philosophy, life, and of course, Pluto.

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.

Dr. Catherine Kleier invites us to open our eyes to the phenomenal world of plant life and to the process she calls “Natura Revelata”, the joy of celebrating and learning from the secrets of nature. As Dr. Kleier shares her knowledge with contagious excitement for her subject, she emphasizes the middle ground: Instead of focusing on cell microbiology or the study of ecosystems and habitats, she stresses the basic biology, function, and the amazing adaptations of the plants we see all around us.

In this illuminating audiobook, Tyson and coauthor James Trefil, a renowned physicist and science popularizer, take on the big questions that humanity has been posing for millennia - How did life begin? What is our place in the universe? Are we alone? - and provide answers based on the most current data, observations, and theories.

At the end of his career, Albert Einstein was pursuing a dream far more ambitious than the theory of relativity. He was trying to find an equation that explained all physical reality - a theory of everything. Experimental physicist and award-winning educator Dr. Don Lincoln takes you on this exciting journey in The Theory of Everything: The Quest to Explain All Reality. Suitable for the intellectually curious at all levels and assuming no background beyond basic high-school math, these 24 half-hour lectures cover recent developments at the forefront of particle physics and cosmology.