Agriculture
Got Milk? How?
Getting the dirt on carbon
Where Have All the Bees Gone?
Amphibians
Salamanders and Newts
Tree Frogs
Toads
Animals
Who's Knocking?
Feeding School for Meerkats
Helping the Cause of Macaws
Behavior
A Recipe for Happiness
Brain cells take a break
Video Game Violence
Birds
Ospreys
Quails
Flamingos
Chemistry and Materials
The Taste of Bubbles
Toxic Dirt + Avian Flu = Science Fair Success
Pencil Thin
Computers
Nonstop Robot
Hubble trouble doubled
Electronic Paper Turns a Page
Dinosaurs and Fossils
Winged Insects May Go Way Back
An Ancient Feathered Biplane
Fossil Forests
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Undersea Vent System Active for Ages
Life trapped under a glacier
A Dire Shortage of Water
Environment
Acid Snails
Toxic Cleanups Get a Microbe Boost
Catching Some Rays
Finding the Past
Preserving Ancient Warrior Paint
Digging Up Stone Age Art
Watching deep-space fireworks
Fish
Mahi-Mahi
Electric Eel
Cleaning Up Fish Farms
Food and Nutrition
A Taste for Cheese
The Essence of Celery
Allergies: From Bee Stings to Peanuts
GSAT English Rules
Pronouns
Order of Adjectives
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
The Annual GSAT Scholarships
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
2014 GSAT Results for Jamaican Kids
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
GSAT Scholarship
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Math of the World
Math Naturals
Math is a real brain bender
Human Body
What the appendix is good for
From Stem Cell to Any Cell
Cell Phone Tattlers
Invertebrates
Crustaceans
Roundworms
Mussels
Mammals
Ferrets
African Hippopotamus
Rottweilers
Parents
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Children and Media
Physics
The Particle Zoo
Hold on to your stars, ladies and gentlemen
The Pressure of Scuba Diving
Plants
Seeds of the Future
Farms sprout in cities
Pumping Up Poison Ivy
Reptiles
Lizards
Snapping Turtles
Copperhead Snakes
Space and Astronomy
Cool as a Jupiter
Pluto's New Moons
A Smashing Display
Technology and Engineering
Young Scientists Take Flight
Roll-Up Computer Monitors to Go
Morphing a Wing to Save Fuel
The Parts of Speech
Pronouns
Adjectives and Adverbs
What is a Verb?
Transportation
Flying the Hyper Skies
Charged cars that would charge
Where rivers run uphill
Weather
Earth's Poles in Peril
Where rivers run uphill
Warmest Year on Record
Add your Article

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








Designed and Powered by HBJamaica.com™