Agriculture
Microbes at the Gas Pump
Seeds of the Future
Earth-Friendly Fabrics
Amphibians
Toads
Bullfrogs
Salamanders
Animals
Hot Pepper, Hot Spider
Navigating by the Light of the Moon
Big Squid
Behavior
Listen and Learn
The case of the headless ant
A Recipe for Happiness
Birds
A Meal Plan for Birds
Storks
Quails
Chemistry and Materials
Toxic Dirt + Avian Flu = Science Fair Success
Supersonic Splash
A New Basketball Gets Slick
Computers
Games with a Purpose
Seen on the Science Fair Scene
The solar system's biggest junkyard
Dinosaurs and Fossils
The man who rocked biology to its core
Teeny Skull Reveals Ancient Ancestor
Dino Bite Leaves a Tooth
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
Hints of Life in Ancient Lava
Deep History
Sky Dust Keeps Falling on Your Head
Environment
Little Bits of Trouble
Improving the Camel
Pollution Detective
Finding the Past
If Only Bones Could Speak
Early Maya Writing
A Long Trek to Asia
Fish
Goldfish
Pygmy Sharks
Nurse Sharks
Food and Nutrition
Making good, brown fat
Moving Good Fats from Fish to Mice
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Whoever vs. Whomever
Adjectives and Adverbs
Problems with Prepositions
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Scholarship
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
GSAT Exam Preparation
Access denied - Disabled boy aces GSAT
GSAT Mathematics
Monkeys Count
Math and our number sense: PassGSAT.com
A Sweet Advance in Candy Packing
Human Body
Heavy Sleep
What the appendix is good for
Surviving Olympic Heat
Invertebrates
Dust Mites
Sea Anemones
Beetles
Mammals
Jaguars
Wildcats
Pugs
Parents
How children learn
What Not to Say to Emerging Readers
Expert report highlights the importance to parents of reading to children!
Physics
The Pressure of Scuba Diving
Black Hole Journey
Invisibility Ring
Plants
Making the most of a meal
Farms sprout in cities
Plants Travel Wind Highways
Reptiles
Chameleons
Iguanas
Alligators
Space and Astronomy
Planning for Mars
Older Stars, New Age for the Universe
An Earthlike Planet
Technology and Engineering
Slip Sliming Away
Machine Copy
Space Umbrellas to Shield Earth
The Parts of Speech
What is a Noun
Adjectives and Adverbs
Problems with Prepositions
Transportation
Middle school science adventures
Are Propellers Fin-ished?
Flying the Hyper Skies
Weather
Arctic Melt
Warmest Year on Record
In Antarctica watch the heat (and your step)
Add your Article

Dino-bite!

Ten years ago, scientists discovered a well-preserved set of dinosaur remains in China. This dinosaur, which walked on Earth about 125 million years ago, had feathers and was about the same size as a turkey—but don’t be fooled. This dino’s bite was a lot worse than a turkey’s gobble. After a close (and careful!) examination of the dino’s teeth, scientists recently concluded that this dinosaur was probably poisonous. The study was led by David Burnham, who works and teaches at the University of Kansas in Lawrence. Burnham is a paleontologist — a scientist who studies fossils to learn about ancient life on Earth. (Fossils include the remains of plants and animals, buried and preserved in the ground.) In this case, Burnham and his team studied three features of the skull and teeth of the dinosaur, which is called Sinornithosaurus. It turns out scientists can learn a lot about ancient animals just by getting them to “open up,” even if they don’t say “ahhhhh.” First, these paleontologists focused on the teeth in the dino’s upper jaw. In most of those teeth, the scientists observed small grooves that ran the length of the tooth, from the base to the tip. In the past, these grooves contained tiny rivers of poison: Just as the dinosaur bit into its prey, the venom (a kind of “poison”) ran down the groove. Many modern poisonous reptiles have similar features on their teeth. Also, just above the teeth, in the upper jaw, the scientists observed small pockets in the bone. These pockets probably held special glands that made the venom. A gland is a small organ that makes a substance used in the body. In humans, for example, the pituitary gland is a tiny organ in the brain that produces chemicals needed for growth. In the Sinornithosaurus, the venom gland in the jaw produced poison that was probably stored in reservoirs at the base of the tooth, ready for use when the dinosaur took a bite. Finally, the scientists noted that several of the teeth were long and narrow. Burnham told Science News that other animals with a similar mix of long and short teeth often use them to bite and hold their prey. And most likely, he says, the poison was used to send the prey into shock. When an animal (or person) goes into shock, it is unable to react to stress — so it can’t get itself out of trouble. Its blood pressure and blood flow may decrease, and parts of the body don’t get all the blood they need. That’s a lot of information to come from looking at a few bones — without any extra technological tools. By studying the shape and size of the teeth and jaw, the paleontologists were able to learn a lot about how Sinornithosaurus probably ate. Of course, there’s no chance this funky turkey-size dino ever snacked on a human, since dinosaurs and human beings never lived on Earth at the same time. POWER WORDS (adapted from the Yahoo! Kids Dictionary and other sources) fossil A remnant or trace of an organism of a past geologic age, such as a skeleton or leaf imprint, embedded and preserved in the Earth's crust. prey An animal hunted or caught for food. paleontology The study of the forms of life existing in prehistoric or geologic times, as represented by the fossils of plants, animals and other organisms. shock A potentially fatal bodily reaction to a variety of conditions, including illness, injury, blood loss and lack of adequate water, usually characterized by marked loss of blood pressure, decreased blood circulation and inadequate blood flow to the tissues. gland A cell, a group of cells or an organ that produces and discharges a substance (or “secretion”) for use elsewhere in the body or in a body cavity, or for elimination from the body. venom A poisonous secretion of an animal, such as a snake, spider or scorpion, usually transmitted by a bite or sting.

Dino-bite!
dino-bite!








Designed and Powered by HBJamaica.com™