Rebecca L. Johnson

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.

Presents new animals discovered during a ten year project of documenting sea life, describing new species of such creatures as jellyfish, octopuses, squids, sea worms, and crabs, found along coral reefs, ocean mountain ranges, and in the dark zone.

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.

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

Audisee® eBooks with Audio combine professional narration and text highlighting to engage reluctant readers! The digestive system is made up of the tongue, the esophagus, the stomach, the intestines, and other parts. But what does the digestive system do? And how do its parts work together to keep your body healthy? Explore the digestive system in this engaging and informative book.

Presents the various types of defenses mechanisms used by animals, including the bone spikes of the African hairy frog, the deadly poison of the blue-spotted N. taracua termite, and the hammer-like punch of the peacock mantis shrimp.

Looks at the events of the Chernobyl Nuclear Accident in the Ukraine, describing how scientists are monitoring the effects of radiation on the wildlife that continue to live there and what this means for the human population surrounding the area.

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...

If a black dog and a white dog have puppies, what color will the puppies be? Genetic scientists have been trying to answer this question for hundreds of years. Genetics is the science of heredity-how traits are passed from parents to offspring. One of the first breakthroughs came from Gregor Mendel, a nineteenth-century monk who spent eight years breeding thousands of pea plants. Pea plants might seem pretty different from dogs, but on a microscopic...

An account of various research projects involving the animal and plant life of Australia's Great Barrier Reef.