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As one of the most famous long-necked dinosaurs, the giant Brachiosaurus shook the ground with every slow-moving step. This huge sauropod once lived in herds and ate a ton of plants to sustain its incredible body size. Now, it captures the interest of...

Millions of years ago, Allosaurus was a fearsome giant predator. With sharp claws and knife-like teeth, it once chased down young sauropods and Stegosauruses to eat. Now, this large carnivore captures the interest of readers. Take struggling and...

Taekwondo is "the way of the hand and foot." Striking with precision and speed, this martial art is mostly used for self-defense, though competitions can be a thrill to watch. Both casual fans and aspiring athletes will read about the dedication and...

A whistle blows. Two wrestlers grab each other in tight holds. One twists and the other turns. Then one quick move and bam. A takedown! A wrestling match is a thrill to watch and one of the world's oldest combat sports. Both casual fans and aspiring...

Punch, punch, spin and kick! Kickboxing is an intense workout that works both the mind and body. Combining both boxing and kicking elements, this sport is mostly used for self-defense, though fighters can use competitions to level up. Both casual fans...

Karate takes focus and stamina. Each move is done with strength and precision. Powerful strikes and kicks are a thrill to watch but sparring in this open-hand sport takes time and practice to learn. Both casual fans and aspiring athletes will read about...

Ding! Round one begins and the fighters start swinging. Jab, uppercut, and then wham. Knockout! Boxing bouts are a thrill to watch and this high-interest book packs a powerful punch for sport fanatics. Both casual fans and aspiring athletes will read...

Two martial artists trade strikes. There's intense grappling, hard punches, and then bam. The fighters are down on the mat, and one taps out. A new champion is made! An MMA, or mixed martial arts, fight is a thrill to watch and this high-interest book...

The Bermuda Triangle is an area in the Atlantic Ocean where ships and planes have disappeared without explanation. Why do things disappear at the Bermuda Triangle? Spike elementary-aged readers' curiosity with questions and answers about the...

The Bermuda Triangle is an area in the Atlantic Ocean where ships and planes have disappeared without explanation. Why do things disappear at the Bermuda Triangle? Spike elementary-aged readers' curiosity with questions and answers about the...

ESP stands for extrasensory perception. Some people claim they can see into the future or talk to the dead. Can someone really have a sixth sense, or is it a myth? Spike elementary-aged readers' curiosity with questions and answers about the...

ESP stands for extrasensory perception. Some people claim they can see into the future or talk to the dead. Can someone really have a sixth sense, or is it a myth? Spike elementary-aged readers' curiosity with questions and answers about the...