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Keeping Bugs Away from Food
Tree Frogs
Poison Dart Frogs
Ant Invasions Change the Rules
Roboroach and Company
No Fair: Monkey Sees, Doesn't
Giving Sharks Safe Homes
The Electric Brain
Brainy bees know two from three
Chemistry and Materials
Sugary Survival Skill
Meteorites may have sparked life on Earth
Diamond Glow
Look into My Eyes
The Book of Life
The Earth-bound asteroid scientists saw coming
Dinosaurs and Fossils
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Watery Fate for Nature's Gliders
Downsized Dinosaurs
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Explorer of the Extreme Deep
Vitamin D-licious Mushrooms
Warmest Year on Record
Groundwater and the Water Cycle
Pumping Up Poison Ivy
Improving the Camel
Finding the Past
Digging Up Stone Age Art
Stone Tablet May Solve Maya Mystery
Watching deep-space fireworks
Basking Sharks
Food and Nutrition
How Super Are Superfruits?
Chocolate Rules
Chew for Health
GSAT English Rules
Subject and Verb Agreement
Who vs. That vs. Which
Problems with Prepositions
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Tarrant High overcoming the odds
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Prime Time for Cicadas
Detecting True Art
Secrets of an Ancient Computer
Human Body
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Cell Phones and Possible Health Hazards
Teen Brains, Under Construction
Lhasa Apsos
Doberman Pinschers
How children learn
What Not to Say to Emerging Readers
Children and Media
The Mirror Universe of Antimatter
Speedy stars
Road Bumps
Bright Blooms That Glow
Seeds of the Future
City Trees Beat Country Trees
Boa Constrictors
Sea Turtles
Space and Astronomy
A Galaxy Far, Far, Far Away
Cool as a Jupiter
World of Three Suns
Technology and Engineering
Machine Copy
Switchable Lenses Improve Vision
Supersuits for Superheroes
The Parts of Speech
What is a Noun
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Seen on the Science Fair Scene
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Tinkering With the Basic Bike
The Best Defense Is a Good Snow Fence
A Dire Shortage of Water
Recipe for a Hurricane
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The Birds are Falling

It's time to start paying close attention to birds. That's what a group of scientists and students from Stanford University in California says. A review of data on all of the world's known bird species (nearly 10,000!) has led to a worrisome conclusion. Between 500 and 1,300 bird species will vanish by the year 2100, the researchers predict. As many as 1,050 more will dwindle to such small populations that they'll basically lose their place in the web of life. The birds that are most at risk include scavengers, fish eaters, fruit eaters, and nectar sippers. The scientists based their predictions on information about habitat, diet, and range, among other factors. In the past 500 years, by comparison, only 129 bird species are known to have disappeared. As the birds go, other parts of ecosystems might start falling apart, too. Some bird species, for instance, pollinate only certain types of plants. And these plants might not survive without them. Vultures in Asia provide another example of what can happen when food webs lose their shape. In the past decade, lots of vultures have died after eating carcasses of livestock that had been given medicine. Such drugs keep the animals healthy, but they're poisonous to the birds. As vulture numbers have declined, populations of their competitors have grown in size. This group includes wild dogs that spread disease. Without help for the birds, then, the world might end up looking like a very different place. And we might suffer, too.E. Sohn

The Birds are Falling
The Birds are Falling

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