How did the Yeti become the Abominable Snowman? Do phantom cats prowl the wild? What on earth is the Chuchunya? Cryptids and Creatures takes the Into the Unknown series on a quest to find mysterious beasts that some believe exist despite a lack of evidence. The story looks at both sides of the argument to let readers make up their own minds. Color photos spark the imagination. Bonus facts add details while a timeline traces the history and hoaxes surrounding famous cryptids. A glossary def...

Weeping ghosts. Nuisance ghosts. Keening ghosts. The Into the Unknown series presents Ghosts and Spirits, an up-close look at the paranormal haunts that have followed humans throughout history. Stories tell us that tragedies can create ghosts. Other spirits seem to appear out of nowhere. Yet skeptical non-believers point to clever fakery and the power of suggestion to explain even the most famous cases. A wealth of full-color images helps readers imagine events. Fast facts reveal bonus inf...

People around the world say they have met beings from outer space. Do these close encounters prove aliens exist? The Into the Unknown series probes the mystery with Do Aliens Visit Earth? The investigation begins with early reports of alien contact and takes readers through decades of unexplained events. Believers present their stories while skeptics seek out the evidence behind the most famous cases. Full-color images and fast facts add to the story. A timeline traces alien abduction’s hi...

A pilot’s encounter with unidentified flying objects led to years of UFO sightings. The Into the Unknown series looks to the skies with The Mystery of UFOs. The story describes dramatic sightings that convinced some people that aliens visit our planet. Skeptics, meanwhile, used scientific tools to raise questions about whether UFOs exist. The text also shows how UFOs created a kind of folklore shared by believers and unbelievers alike. Full-color images help readers see into the mystery. F...

This book takes readers on an expedition to find a monster in a cold Scottish lake—and beyond. The Loch Ness Monster introduces Nahuelito, Champ, and other watery wonders while examining the evidence that may—or may not—support the existence of the Loch Ness Monster. Color photos and extra facts provide important added information. A timeline looks at the history and hoaxes surrounding the creatures while a glossary defines just the right words to tell the story in the Into the Unknown ser...

Can an 8-foot-tall hairy creature with size 18 feet remain hidden forever? This book in the Into the Unknown series looks at how an ancient legend of indigenous peoples became a twenty-first century mystery. The Search for Bigfoot examines why believers called Bigfooters swear the creature exists. Nonbelievers, meanwhile, offer reasons that film and footprints fail to provide enough evidence. Full-color images and fast facts show readers the many sides of the Bigfoot story. A timeline trac...

We are paying new attention to the old idea that we should treat animals better. Eating a meatless diet is more popular than ever. People from philosophers to musicians work to end laboratory testing on animals. Yet animals provide us with food and clothing. Medical treatments tested on rats and chimpanzees save lives every day. Is it impossible for humans to live without using animals? Or should we stop making animals serve us? Should We Treat Animals Better? travels through history to pr...

The weather becomes more extreme as Earth’s atmosphere heats up. Today’s storms drop record amounts of rain that cause disastrous floods while massive snowfalls shut down cities. The Planet in Danger series presents Extreme Climate, Extreme Storms, an in-depth look at today’s super-strong rainstorms, hurricanes, and floods. Climate refugees provide eyewitness stories of lives uprooted by extreme weather while scientists share expert viewpoints and the latest research. Fast facts give reade...

Wildfires helped keep nature in balance for millions of years. But today’s wildfires burn hotter, last longer, and happen more often because of climate change. The latest book in the Planet in Danger series, The Threat of Wildfires explains the links between human-caused climate change and these dangerous events. Cutting-edge science describes what conditions spark the flames and detail the human activities involved. Dramatic images take readers onto the hot and smoky front lines while ext...

Ancient lakes turned into wastelands. Vast fields of brown grass. Desperate people on the move in search of water. Droughts have become a threat around the world. The Planet in Danger series delves into the science behind this often-overlooked catastrophe. In Drought: The Quiet Disaster, experts discuss climate change’s role in causing more frequent and intense droughts. Eyewitnesses tell vivid stories of life during drought and share hopeful accounts of finding solutions to problems. Colo...

Sea ice at the Earth’s poles air condition the planet. Glaciers store huge amounts of water. But as climate change melts the ice, the planet heats up faster and the ocean levels rise. Planet in Danger: Disappearing Sea Ice and Glaciers looks at how events in the polar regions threaten small communities and giant cities around the world. The latest science news provides details and expert accounts. Full-color images take readers into rushing floodwaters and onto Arctic ice floes. Fast facts...

People depend on biodiversity. But today, plant and animal species go extinct faster than at any point in human history. The latest book in the Planet in Danger series, The Loss of Biodiversity explores the relationship between human beings and the living world and the threat to it posed by climate change. On-the-ground stories highlight how people maintain biodiversity to better their own lives. The latest research details the fascinating ways living things play a part in our food, medici...