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From the first immunosuppressant drugs to the first successful heart transplant, this exploration of scientific inquiry celebrates the greatest developments to date in transplant medicine. Get to know the physicians, scientists, and other researchers responsible for these breakthroughs in medicine.

English explorer Henry Hudson had long searched for a quicker, northern sailing route from Europe to Asia. Three previous expeditions had failed. In 1610, he embarked again to find the fabled Northwest Passage. But when icy waters stranded Hudson and the Discovery in a bay for the winter, tensions flared. The crew lost faith in their captain’s leadership and began to plot...mutiny!

Sir Ernest Henry Shackleton led an expedition across Antarctica in 1914. Did you know that science played a big role in this dangerous journey?

This Deadly Expeditions tale transports listeners back in time to follow the Donner Party’s disastrous trek west and their struggle to survive.

Find out how the Egyptian pyramids were engineered. Learn about the science behind King Tut's mummy. Discover how modern technology helps us learn more about King Tut's life and death.

In 1881, U.S. Army Lieutenant Adolphus Greely and his crew set sail for the Arctic. Their mission was to collect scientific data on the polar climate. They also had a second, secret goal: to achieve Farthest North, the record for highest latitude reached by explorers. But when resupply ships failed to arrive two years in a row, the team’s dreams of glory turned into a nightmarish fight for survival in one of the most remote and harshest regions in the world.

What went wrong, and how did the survivors manage to make it back alive? This Deadly Expeditions tale transports listeners back in time to discover how one of the deadliest days on Mount Everest unfolded.

It’s a battle of the leader of gods versus the god of the sun. The Greek god Zeus controls the skies and can shapeshift as he wishes. With his connection to the sun, the Egyptian god Ra provides life, warmth, and growth. If these to gods were to go head-to-head, who would come out on top?

In May 1607, English settlers stepped off their ship in North America. They were about to start the first permanent English settlement in North America. They endured many hardships and made many tough choices in the new land. Now the choices are yours. Would you rather suffer from intestinal problems after becoming infected with dysentery or have bleeding gums after getting scurvy? Would you want to work as a blacksmith or tend the tobacco fields?

In September 1620, 102 brave travelers and their crew stepped upon a ship called the Mayflower in England. Most were members of a religious group now known as the Pilgrims. They were bound for North America to start a new life. They endured many hardships and made many tough choices. Now the choices are yours. Would you rather suffer from seasickness or from skin sores caused by scurvy? Would you rather have been a crew member navigating the ship in stormy seas or cramped into the living quarters just along for the tumultuous ride? It's your turn to pick this or that!

Thousands of American settlers endured the long trip of more than 2,000 miles between Missouri and Oregon in the mid-1800s. They were determined to make a better life for themselves. They faced many hardships and made tough choices. Now the choices are yours. Would you rather run out of food supplies or spare wagon parts? Would you ford the river and get across faster but risk your wagon overturning? Or would you take apart your wagon and float it across but risk delaying your time-sensitive journey? It's your turn to pick this or that!

In mid-1860s, two railroad companies had a huge job in front of them: building the transcontinental railroad. The railroad would run from east to west across the United States. As the grueling work began, there were many choices to make. Now, the choices are yours.

In 1804, Meriwether Lewis, William Clark, and their team set out on an exciting yet challenging expedition into the American West. They faced many difficult choices along the way. Now, the choices are yours.

After gold was discovered in California in 1848, thousands of people rushed there to strike it rich. They faced tough choices at every turn. Now the choices are yours. Would you rather use the slower method of panning for gold or use a more dangerous method of hydraulic mining? Would you rather run a store or a hotel in a California boomtown? It's your turn to pick this or that!

By 1860, Americans had settled from coast to coast. How could mail get from east to west? The Pony Express! Brave Pony Express riders did whatever it took to get the mail delivered quickly. They faced many difficult choices along the way. Now the choices are yours. Would you rather encounter a grizzly bear or a mountain lion? Would you rather ride through driving snow or pouring rain? It's your turn to pick this or that!

Life on the American frontier wasn't easy. Pioneers had to deal with tough challenges including rough terrain, extreme weather, starvation, and dangerous animals. But in spite of the hardships, people persevered. Follow the true stories of those who braved the frontier and what they had to do to survive in this book from the Fighting to Survive series.

In the early 1800s, thousands of pioneers made a long, perilous westward journey from Missouri to New Mexico. They paved the way for more settlers looking to start a new life in the West. They endured many hardships and made many tough choices. Now the choices are yours. Would you rather get bitten by a poisonous snake or suffer from cholera? Would you take the longer route across mountains with more available water? Or would you take the shorter route across the desert with less water? It's your turn to pick this or that!

How much do you know about Sacagawea? Find out the facts you need to know about this American Indian who helped guide the Lewis and Clark Expedition. You'll learn about the early life, challenges, and major accomplishments of this important American.

A raging wildfire burns thousands of homes. A violent earthquake creates a giant tsunami that destroys countless lives. A giant tornado wipes a small town off the map. Discover the true stories of people who survived these terrible disasters and lived to tell the tale in this book from the Fighting to Survive series.

The amount of available oxygen at the highest place on Earth is just under 7%. Explorers risk their lives and test their lungs traveling to these great heights atop mountains. Who are these adventurers and why do they do it? Listen to find out!