Ages 13 to 14

Since ancient times, fishermen have spun tales of giant sea monsters, tentacled beasts that capsized ships and drowned countless sailors. Most of these mythical creatures are now known to have been based on real animals, such as giant squid and octopuses...

Near-death experiences (NDEs) are medically inexplicable mysteries that can affect anyone. Happening when a person is unconscious, comatose, or clinically dead, NDEs puzzle doctors and scientists with their intensely realistic features. Although no two...

Near-death experiences (NDEs) are medically inexplicable mysteries that can affect anyone. Happening when a person is unconscious, comatose, or clinically dead, NDEs puzzle doctors and scientists with their intensely realistic features. Although no two...

It dwells in a dark lake in the Scottish Highlands--so says the legend of the Loch Ness Monster. For thousands of years, people have told stories of "Nessie," the giant water creature with a long neck and flippers. But is it real or a hoax? Scientists...

It dwells in a dark lake in the Scottish Highlands--so says the legend of the Loch Ness Monster. For thousands of years, people have told stories of "Nessie," the giant water creature with a long neck and flippers. But is it real or a hoax? Scientists...

Best known from the fuzzy 1967 Patterson film, Bigfoot (Sasquatch) is a large apelike creature that allegedly roams the Pacific Northwest. Variations are said to exist around the world, including the yeti and yowie. But is this creature real or a hoax?...

Best known from the fuzzy 1967 Patterson film, Bigfoot (Sasquatch) is a large apelike creature that allegedly roams the Pacific Northwest. Variations are said to exist around the world, including the yeti and yowie. But is this creature real or a hoax?...

According to the ancient Greek philosopher Plato, Atlantis was a utopian island city and kingdom that was destroyed by a flood more than 11,000 years ago. But was it real or just a story? Scientists and historians seeking the truth debate conspiracy...

According to the ancient Greek philosopher Plato, Atlantis was a utopian island city and kingdom that was destroyed by a flood more than 11,000 years ago. But was it real or just a story? Scientists and historians seeking the truth debate conspiracy...

Area 51, in the desert outside Las Vegas, Nevada, is a place so mysterious that for years the U.S. government wouldn't admit it existed. Cloaked in secrecy, the restricted military zone is now known to play a key role in American aeronautics and defense...

Area 51, in the desert outside Las Vegas, Nevada, is a place so mysterious that for years the U.S. government wouldn't admit it existed. Cloaked in secrecy, the restricted military zone is now known to play a key role in American aeronautics and defense...

What type of person does it take to change the world? Readers will explore this question as they learn about the life and works of some of the world's most important scientists. In 12 Scientists Who Changed the World, readers are drawn in by each page's...