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Red Apes in Danger
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Training Your Brain to Feel Less Pain
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A Butterfly's Electric Glow
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Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
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Polar Ice Feels the Heat
Groundwater and the Water Cycle
On the Trail of America's Next Top Scientists
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The Wolf and the Cow
Fungus Hunt
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Finding the Past
Stone Tablet May Solve Maya Mystery
Early Maya Writing
Ancient Art on the Rocks
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Strong Bones for Life
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In Search of the Perfect French Fry
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Mastering The GSAT Exam
GSAT stars reap scholarship glory
Ministry of Education Announces 82 GSAT Scholarships for 2010
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GSAT Practice Papers | GSAT Mathematics | Maths
Results of GSAT are in schools this week
GSAT Mathematics
Secrets of an Ancient Computer
Math Naturals
It's a Math World for Animals
Human Body
Spitting Up Blobs to Get Around
Gut Germs to the Rescue
Sleeping Soundly for a Longer Life
Invertebrates
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Lobsters
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Quolls
Sphinxes
Parents
Expert report highlights the importance to parents of reading to children!
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
Physics
Echoes of a Stretched Egg
Thinner Air, Less Splatter
Gaining a Swift Lift
Plants
Hungry bug seeks hot meal
Flower family knows its roots
Springing forward
Reptiles
Lizards
Komodo Dragons
Sea Turtles
Space and Astronomy
Witnessing a Rare Venus Eclipse
A Family in Space
Cool as a Jupiter
Technology and Engineering
Roll-Up Computer Monitors to Go
A Clean Getaway
Squeezing Oil from Old Wells
The Parts of Speech
Countable and Uncountable Nouns
What is a Verb?
Adjectives and Adverbs
Transportation
Charged cars that would charge
Reach for the Sky
Morphing a Wing to Save Fuel
Weather
Arctic Melt
Science loses out when ice caps melt
The solar system's biggest junkyard
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Jay Watch

When some birds store food for future meals, they pay close attention to who might be watching when they hide the food. In the presence of thieves, the birds go to extra trouble to save their hoards. Among western scrub jays, certain birds are ranked higher than others. High-ranked birds often steal food from birds of lower rank. Low-ranked birds never steal from their superiors, but they sometimes steal from others of the same rank. In a generous spirit, jays allow their mates to raid each other's hoards. In a recent set of tests, scientists gave some yummy waxworms to individual jays. They also provided two ice cube trays, filled with pellets, as hiding places. When a jay other than its mate was watching, a bird would hide more waxworms in the tray that was farther away from the watcher. Later, when revisiting the trays in private, any hider who'd been watched by a superior during the first episode shifted more treats to other hiding places than did a bird watched by a subordinate, a mate, or no other jay. Next, the researchers let a jay hide waxworms in a single tray while a jay of similar rank watched. In the second round, there was a different observer and a different tray for hiding food. When the hider came back to the scene and found one of the original observers watching, it remembered which tray it had used while that observer was watching. Then, it went about moving worms away from that tray to the other one. And the jay would be very sneaky while doing it. Keeping the food hidden in its beak, it would poke its beak into several possible hiding places. A spy couldn't easily tell into which spot the food was actually placed. Scientists were surprised to find evidence that birds could tell the difference between individuals and could remember what those individuals knew. The new findings are "just the last step in a long series of experiments showing that birds do all kinds of things," says Tom Smulders of the University of Newcastle in England. The term "birdbrain" may be a compliment after all!E. Sohn

Jay Watch
Jay Watch








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