Using its amazing sense of smell, a grizzly bear can sniff out food from miles away. With jaws and teeth that can bite through an iron skillet, grizzly bears are fearsome hunters. Readers will learn about what makes grizzly bears such deadly predators, from their hunting styles to what they like to eat. Fun Facts and an Amazing but True section will thrill readers and give them a closer look at the lives of these massive creatures.

The spirit of a headless queen? The wandering ghost of a famous president? Could these spooks be real? Get the eerie details of the world’s most haunted places.

Sharing perspectives on their journeys into the physical sciences, these heroes provide readers with advice about overcoming adversity.Quake Chasers: 15 Women Rocking Earthquake Science explores the lives of 15 diverse, contemporary female scientists with a variety of specialties related to earthquake science.Dr. Debbie Weiser travels to communities post-disaster, such as Japan and China, to evaluate earthquake damage in ways that might help save l...

Alien abductions? Mysterious lights in the sky? Could these events actually be the work of extra terrestrials? Get the facts about the top ten UFO and alien mysteries of all time.

No other motorcycle can take a beating quite like a dirt bike. These lightweight speedsters combine strong suspension systems with high powered engines and superb handling. Find out how today’s riders push their tough bikes to new limits in racing, freestyle, and beyond.

Ironing on a mountainside. Chasing after cheese. These are not your ordinary activities. Get ready to learn about some of the world’s strangest sports.

Mixed martial arts competitors wrestle, jab, and kick their ways to the top. The best fighters never pull any punches. Look inside for the biggest names in MMA.

Snowboarding greats soar through the air and pull off awesome tricks before they hit the powder. Top boarders never stop pushing the limits. Look inside for the best of the best on the snowboarding scene.

Fish that look like cartoons. Lizards that squirt blood from their eyes. These are not your ordinary creatures. Get ready to learn about some of the world’s strangest animals.

Dragsters are the fastest racing machines on Earth. Using powerful engines, drag racing cars and motorcycles rush down the track at blistering speeds. Check out the types of vehicles used to drag race, how they work, and the races they compete in.

Airplanes that soared through ancient skies? An underwater city? Could these unbelievable things ever have existed? Learn about the top ten ancient mysteries and investigate for yourself.

A boy at a Spanish market knocks over a stand of avocados falls down a hill and makes guacamole.