Treating peanut allergy bit by bit
Middle school science adventures
Seeds of the Future
Frogs and Toads
Poison Dart Frogs
Sleepless at Sea
Baboons Listen for Who's Tops
A Fallout Feast for Crabs
Supersonic Splash
Honeybees do the wave
Sugar-pill medicine
Chemistry and Materials
Atomic Drive
The solar system's biggest junkyard
Graphene's superstrength
The hungry blob at the edge of the universe
Supersonic Splash
The science of disappearing
Dinosaurs and Fossils
Meet the new dinos
An Ancient Feathered Biplane
Hunting by Sucking, Long Ago
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
The Pacific Ocean's Bald Spot
Digging into a Tsunami Disaster
A Global Warming Flap
Indoor ozone stopper
Fungus Hunt
Acid Snails
Finding the Past
Traces of Ancient Campfires
Big Woman of the Distant Past
Stonehenge Settlement
Skates and Rays
Food and Nutrition
The Color of Health
Eat Out, Eat Smart
Food for Life
GSAT English Rules
Adjectives and Adverbs
Capitalization Rules
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
10 Common Mistakes When Preparing for the GSAT Math Test
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exams Jamaica Scholarships
GSAT Scholarship
GSAT Exam Preparation
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
It's a Math World for Animals
Detecting True Art
10 Common Mistakes When Preparing for the GSAT Math Test
Human Body
What the appendix is good for
Heart Revival
Music in the Brain
Sea Anemones
Basset Hounds
Great Danes
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
How children learn
One ring around them all
Electric Backpack
Echoes of a Stretched Egg
Underwater Jungles
Pumping Up Poison Ivy
Hungry bug seeks hot meal
Gila Monsters
Space and Astronomy
Planning for Mars
Cousin Earth
No Fat Stars
Technology and Engineering
A Satellite of Your Own
Sugar Power for Cell Phones
Switchable Lenses Improve Vision
The Parts of Speech
What is a Verb?
Adjectives and Adverbs
What is a Preposition?
Where rivers run uphill
Morphing a Wing to Save Fuel
Middle school science adventures
Watering the Air
Weekend Weather Really Is Different
The Best Defense Is a Good Snow Fence
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Digging for Ancient DNA

In the movie Jurassic Park, scientists discover fossilized insects that had eaten dinosaur blood just before they died. The dino blood is full of DNA—the instruction manual of life—and the scientists use some of those tiny molecules to bring dinosaurs back to life. One of the reasons this could never really happen is that DNA is incredibly fragile. Every speck of dino DNA has probably broken down during the 65 million years since the giant reptiles disappeared. But now, new DNA discoveries are opening windows into ancient worlds. In tiny samples of soil from New Zealand and Siberia, molecular biologist Eske Willerslev of the University of Copenhagen and his colleagues have found the oldest bits of identifiable DNA ever. In Siberia, the researchers drilled into ice and dirt dating back 2 million years. In sediment that was 30,000 years old, they found DNA from eight animal species, including horses, reindeer, bison, and woolly mammoths. In DNA extracted from 400,000-year-old soil, the researchers found at least 28 species of trees, shrubs, herbs, and mosses. Willerslev guesses that the DNA made its way into the soil through animal poop. He hopes the new findings will help reveal what life was like long ago. Unfortunately, the chances of any DNA in dinosaur poop lasting that long are pretty slim.—E. Sohn

Digging for Ancient DNA
Digging for Ancient DNA

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