Agriculture
Fast-flying fungal spores
Watering the Air
Treating peanut allergy bit by bit
Amphibians
Frogs and Toads
Salamanders and Newts
Tree Frogs
Animals
A Meal Plan for Birds
Little Beetle, Big Horns
Firefly Delight
Behavior
Homework blues
Ear pain, weight gain
Reading Body Language
Birds
Flightless Birds
Vultures
Hawks
Chemistry and Materials
The Taste of Bubbles
Small but WISE
Screaming for Ice Cream
Computers
Galaxies far, far, far away
Electronic Paper Turns a Page
New twists for phantom limbs
Dinosaurs and Fossils
Supersight for a Dino King
A Rainforest Trapped in Amber
From Mammoth to Modern Elephant
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
A Grim Future for Some Killer Whales
Groundwater and the Water Cycle
Quick Quake Alerts
Environment
The Oily Gulf
Shrimpy Invaders
The Down Side of Keeping Clean
Finding the Past
Stone Tablet May Solve Maya Mystery
Preserving Ancient Warrior Paint
Of Lice and Old Clothes
Fish
Megamouth Sharks
Flashlight Fishes
Electric Catfish
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
Making good, brown fat
A Pepper Part that Burns Fat
GSAT English Rules
Whoever vs. Whomever
Who vs. That vs. Which
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
The Annual GSAT Scholarships
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
GSAT Scholarship
GSAT stars reap scholarship glory
GSAT Exam Preparation
GSAT Mathematics
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Math and our number sense: PassGSAT.com
Losing with Heads or Tails
Human Body
Teen Brains, Under Construction
Gut Microbes and Weight
Spitting Up Blobs to Get Around
Invertebrates
Giant Squid
Starfish
Praying Mantis
Mammals
Persian Cats
Moles
Badgers
Parents
Expert report highlights the importance to parents of reading to children!
How children learn
Choosing a Preschool: What to Consider
Physics
Strange Universe: The Stuff of Darkness
Einstein's Skateboard
The Mirror Universe of Antimatter
Plants
Assembling the Tree of Life
Bright Blooms That Glow
A Giant Flower's New Family
Reptiles
Snapping Turtles
Boa Constrictors
Asp
Space and Astronomy
Mercury's magnetic twisters
Cool as a Jupiter
Saturn's New Moons
Technology and Engineering
Dancing with Robots
Are Propellers Fin-ished?
Searching for Alien Life
The Parts of Speech
Pronouns
What is a Noun
Problems with Prepositions
Transportation
Seen on the Science Fair Scene
Reach for the Sky
Are Propellers Fin-ished?
Weather
Catching Some Rays
The solar system's biggest junkyard
Arctic Melt
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™