Audisee® eBooks with Audio combine professional narration and text highlighting to engage reluctant readers! The muscular system is made up of three different kinds of muscles: skeletal muscles, smooth muscle, and heart muscle. But what does each kind of muscle do? And where in the body are they located? Explore the muscular system in this engaging and informative book.

Takes readers on a walk through a tropical rain forest, showing examples of how the animals and plants depend on each other and their environment to survive.

Describes the climate, soil, plants, and animals of North American deserts and the ways in which the plants and animals depend on each other and their environment to survive.

Takes readers on a walk through a forest of trees that lose their leaves in the fall, showing examples of how the animals and plants depend on each other and their environment to survive.

Presents animals that use camoflauge to survive, including the harlequin filefish, the gliding lizard, and the cuckoo finch.

An exploration of animal defenses that discusses the physical and behavioral adaptations that various species depend on for survival.

Darwin's theory of evolution, published in 1859, shook up the field of paleontology, the study of ancient plants and animals. Othniel Charles Marsh and Edward Drinker Cope, enthralled with these new ideas, discoveries, and developments, became determined to become world-famous paleontologists. When they met in 1863, they started off as friends. But within a few years, competition drove them apart. Each fought bitterly to discover more fossils, name...

What is matter made of? Scientists have been trying to answer this question for thousands of years. The concept of the atom-the tiniest fragment of a substance that still retains the characteristics of that substance-goes back to the Greek philosopher Leucippus, who lived in about 450 b.c. In the mid-1600s, Robert Boyle provided experimental evidence that atoms did, indeed, exist. And in 1897, British physicist Joseph John Thomson discovered the first...

Did you know that some animals have natural ninja-like talents? In this book, you'll learn all about them, including geckos, sea urchins, bombardier beetles, and more. For example, geckos can grip almost any surface--including walls and ceilings--with their amazing toes. And when collector urchins are attacked, they release tiny, sharp objects that bear a striking resemblance to throwing stars. You will also meet the scientists who are studying these...

Discusses what the greenhouse effect is, research into its causes, and its possible impact on our planet.