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Cycling events at the Summer Games are amazing to watch! From long distance cycling to zooming around the velodrome, elementary readers will discover the speed and endurance it takes to win gold in this sport's road, track, mountain biking, and BMX...

Athletic events at the Summer Games are amazing to watch! From the 100-meter race that's finished in 10 seconds to the high jump, where athletes soar seven feet in the air, elementary readers will discover the speed and power it takes to win gold in this...

Athletic events at the Summer Games are amazing to watch! From the 100-meter race that's finished in 10 seconds to the high jump, where athletes soar seven feet in the air, elementary readers will discover the speed and power it takes to win gold in this...

Water sports at the Summer Games are amazing to watch! From swimming to diving and even water polo, elementary readers will discover the power and grace it takes to win gold in these aquatic events. Action photos and straightforward text introduce...

Water sports at the Summer Games are amazing to watch! From swimming to diving and even water polo, elementary readers will discover the power and grace it takes to win gold in these aquatic events. Action photos and straightforward text introduce...

Meet the walrus! Learn about how this sea mammal migrates to stay near ice. Elementary-aged readers will discover walrus's giant tusks. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these fascinating animals. An...

Meet the walrus! Learn about how this sea mammal migrates to stay near ice. Elementary-aged readers will discover walrus's giant tusks. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these fascinating animals. An...

Meet the stork! Learn about how this long-legged bird uses its bill to tear up its food. Elementary-aged readers will discover that storks have an extra eyelid. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these...

Meet the stork! Learn about how this long-legged bird uses its bill to tear up its food. Elementary-aged readers will discover that storks have an extra eyelid. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these...

Meet the sloth! Learn about how this slow mammal grows algae on its fur. Elementary-aged readers will discover that some sloths sleep the day away. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these cute...

Meet the sloth! Learn about how this slow mammal grows algae on its fur. Elementary-aged readers will discover that some sloths sleep the day away. Full color images and clear explanations highlight the habitat, diet, and lifestyle of these cute...

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...