Explores how animals around the world are driven by natural instinct to travel great distances each year and describes the migrations of the zebra, walrus, and Christmas Island red crab.

Ever since the first youngster in history had a pet, cats vs. dogs has been a hotly debated issue at recesses and lunch tables worldwide. Which one's better? Smarter?

Traces the life of a Jewish girl who chronicled her day-to-day life in a diary as she hid in an attic in Nazi-occupied Holland for two years.

"Nelson Mandela, who courageously dealt with adversity and emerged a world leader, has been an inspirational role model for millions of people around the world, from students to presidents. After being imprisoned for 27 years, in 1994 he became South Africa's first democratically-elected president and shared the Nobel Peace Prize. Mandela died in 2014, but his legacy lives on as a barrier-breaker and humanitarian. Learn all about his life, especially...

Provides information about the Earth's water, including rivers, lakes, oceans, the water cycle, climate, water pollution, and conservation.

"Explore one of the most recognized figures in American history with this biography of Sacagawea. Kids will learn about her crucial role in the Lewis and Clark expedition and her influential legacy. The level 3 text provides accessible, yet wide-ranging, information for independent readers" --

"Calling all pony lovers, horse fanatics, and bookworms! Trot through 100 enchanting equine facts in this new leveled reader, perfect for fluent readers. Packed with weird-but-true facts and tons of equestrian animal info, this Level 3 Reader gallops right into the world of horses--from wild ponies to superstar racers to the shared history of humans and horses"--Provided by the publisher.

"Superhero and comic book force? Sure, but also a real-life animal! Find out in this Level 3 Reader how fierce wolverines, who are expert survivors, can be even more fantastic than those in movies and graphic novels. Journey through harsh cold and rugged mountain ranges to see how wolverines take down prey, raise their young, and live in one of the world's harshest environments. Learn how their bodies adapt for survival and about its challenges in...

"Meet cuttlefish that can camouflage themselves, octopuses that outsmart their predators, and squid that patrol the deep in this cool fact-filled reader. Learn everything you've ever wanted to know about cephalopods, from inking, to hunting, to coconut carrying. Squish along with squid, camouflage with cuttlefish, and marvel at magnificent octopuses. Packed with weird-but-true facts and tons of cool animal info, this Level 3 Reader explores the incredible...

"Journey through the depths of the ocean into the dark Midnight Zone and discover the mysterious animals that live there. Learn about how their bodies make their own light or adapt to living in low-light areas, how they hunt, what they eat, and how they keep themselves safe from predators"--Provided by the publisher.