Treating peanut allergy bit by bit
Flush-Free Fertilizer
Chicken Eggs as Drug Factories
Big Squid
Walks on the Wild Side
Insect Stowaways
Surprise Visitor
Meet your mysterious relative
Night of the living ants
Chemistry and Materials
Putting the Squeeze on Toothpaste
Diamond Glow
Makeup Science
Nonstop Robot
The science of disappearing
New eyes to scan the skies
Dinosaurs and Fossils
Middle school science adventures
The Paleontologist and the Three Dinosaurs
From Mammoth to Modern Elephant
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Unnatural Disasters
Detecting an Eerie Sea Glow
Life under Ice
Acid Snails
Groundwater and the Water Cycle
The Wolf and the Cow
Finding the Past
Big Woman of the Distant Past
Preserving Ancient Warrior Paint
Early Maya Writing
Food and Nutrition
Building a Food Pyramid
Chew for Health
The Color of Health
GSAT English Rules
Who vs. That vs. Which
Whoever vs. Whomever
Who vs. Whom
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
How are students placed after passing the GSAT exam
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Exam Preparation
Results of GSAT are in schools this week
GSAT Mathematics
GSAT Practice Papers | GSAT Mathematics | Maths
Secrets of an Ancient Computer
Detecting True Art
Human Body
A Better Flu Shot
Sun Screen
A Sour Taste in Your Mouth
Sea Anemones
African Leopards
Children and Media
What Not to Say to Emerging Readers
How children learn
Hold on to your stars, ladies and gentlemen
Thinner Air, Less Splatter
The Particle Zoo
Seeds of the Future
A Giant Flower's New Family
Surprise Visitor
Garter Snakes
Space and Astronomy
A Family in Space
Pluto, plutoid: What's in a name?
Planet Hunters Nab Three More
Technology and Engineering
Model Plane Flies the Atlantic
Drawing Energy out of Wastewater
Searching for Alien Life
The Parts of Speech
What is a Noun
What is a Verb?
Problems with Prepositions
Revving Up Green Machines
Middle school science adventures
Seen on the Science Fair Scene
Arctic Melt
A Dire Shortage of Water
Polar Ice Feels the Heat
Add your Article

Supersight for a Dino King

The movie Jurassic Park has a scary scene in which a Tyrannosaurus rex growls right into the faces of two characters. One person tells the other not to worry because T. rex can't see things that don't move. Bad advice. A scientist now suggests that T. rex had some of the best vision in animal history. Kent A. Stevens of the University of Oregon used models of the faces of several dinosaurs, including T. rex, to try to figure out how well they could see. He was especially interested in T. rex's binocular vision. Binocular vision allows animals to see three-dimensional objects more clearly, even when the objects are motionless or camouflaged. It turns out that T. rex had pretty amazing vision—better than people and even hawks have. Stevens also found that parts of T. rex's face changed over time to help it see better. As the animal evolved over millennia, its eyeballs grew larger and its snout grew skinnier so that its view wasn't blocked. "With the size of its eyeballs, it couldn't help but have excellent vision," Stevens says. In fact, its vision was so sharp that it could probably distinguish objects that were as far away as 6 kilometers. People can do no better than 1.6 kilometers. T. rex was a meat-eating dinosaur, but scientists disagree on whether T. rex hunted for its food or simply ate leftovers from other dinosaurs. The dinosaur's amazing vision has some scientists thinking that T. rex was a hunter. After all, if it ate only leftovers, why would it need to spot other animals so far away? Other scientists say that T. rex could have used its great vision for other purposes, such as avoiding trees. Stevens says that he was inspired to study T. rex eyes because he didn't believe that the T. rex scene in Jurassic Park was possible. "If you're sweating in fear 1 inch from the nostrils of the T. rex, it would figure out you were there anyway," he says.—E. Jaffe

Supersight for a Dino King
Supersight for a Dino King

Designed and Powered by™