Rebecca L Johnson
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Have you ever wondered what mysteries the ocean holds? Prepare to explore the ocean from sunlit shallows to the deepest, darkest depths. Along the way, you'll meet many incredible creatures that are brand new to science. Dive to a coral reef and spot a new species of pygmy octopus. Travel deeper and discover fragile, nearly transparent jellies as they drift past. Then head down into a world of eternal night. You'll encounter animals that make their...
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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...
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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.
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Audisee® eBooks with Audio combine professional narration and sentence highlighting to engage reluctant readers! The octopus spies a nice, tasty mantis shrimp. It swims over for a closer look at the small creature. Then-WHAM!-the mantis shrimp strikes a nasty blow with its hammer-like forelimb. The octopus shrinks back, defeated. That wasn't such an easy meal after all.
In nature, good defenses can mean the difference between surviving a predator's...
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In the animal kingdom, survival is the name of the game--and not everything is as it seems. A number of animals rely on particularly clever tricks to fool predators or prey. A baby bird mimics a poisonous caterpillar. A moth escapes bats by making sounds that interfere with the bats' echolocation. A tiny rain forest spider builds a big spider "puppet" out of bits of dead leaves, insect parts, and other items. Find out more about some of nature's most...
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Ninja were skilled warriors in medieval Japan. And now you can find ninja in comics, movies, and TV shows. But what about in nature? Real animals aren't anything like ninja . . . are they? A stealthy lizard that can climb walls and hang upside down by its toes? Yes! A sea creature that defends itself with weapons that look a whole lot like throwing stars? Definitely! An insect that blends in so well with its enemies that they never even know it's...
15) Genetics
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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...
16) Plate tectonics
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For hundreds of years, people found the fossils of ancient sea creatures at the tops of tall mountains. Scientists puzzled over this problem. A fish couldn't have swum up a mountain. And how could rocks on a mountain move up from the bottom of a sea? Geologists finally found the answers they needed in the 1960s, when they developed the theory of plate tectonics. This theory revolutionized our understanding of the earth. Plate tectonics explains how...
17) Atomic structure
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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...
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After the 1986 Chernobyl nuclear explosion in Ukraine, scientists believed radiation had created a vast and barren wasteland in which life could never resurface. But the Dead Zone, as the contaminated area is known, doesn't look dead at all. In fact, wildlife seems to be thriving there. The Zone is home to beetles, swallows, catfish, mice, voles, otters, beavers, wild boar, foxes, lynx, deer, moose-even brown bears and wolves. Yet the animals in the...