Agriculture
Protecting Cows—and People—from a Deadly Disease
Cleaning Up Fish Farms
Chicken Eggs as Drug Factories
Amphibians
Frogs and Toads
Salamanders and Newts
Salamanders
Animals
Baboons Listen for Who's Tops
Roboroach and Company
Lucky Survival for Black Cats
Behavior
Dino-bite!
Talking with Hands
A Global Warming Flap
Birds
A Meal Plan for Birds
Finches
Carnivorous Birds
Chemistry and Materials
Putting the Squeeze on Toothpaste
The science of disappearing
A Framework for Growing Bone
Computers
Fingerprint Evidence
Two monkeys see a more colorful world
Lighting goes digital
Dinosaurs and Fossils
Downsized Dinosaurs
Early Birds Ready to Rumble
A Rainforest Trapped in Amber
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Shrinking Glaciers
Unnatural Disasters
Surf Watch
Environment
City Trees Beat Country Trees
Giant snakes invading North America
Little Bits of Trouble
Finding the Past
Early Maya Writing
Ancient Art on the Rocks
Stonehenge Settlement
Fish
Megamouth Sharks
Angler Fish
Dogfish
Food and Nutrition
A Pepper Part that Burns Fat
Eat Out, Eat Smart
Turning to Sweets, Fats to Calm the Brain
GSAT English Rules
Pronouns
Who vs. Whom
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
The Annual GSAT Scholarships
Preparing for the GSAT Exam
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
Results of GSAT are in schools this week
Access denied - Disabled boy aces GSAT
GSAT Mathematics
How a Venus Flytrap Snaps Shut
Losing with Heads or Tails
Detecting True Art
Human Body
From Stem Cell to Any Cell
Sleeping Soundly for a Longer Life
Heart Revival
Invertebrates
Nautiluses
Krill
Bedbugs
Mammals
Narwhals
Primates
Badgers
Parents
Raise a Lifelong Reader by Reading Aloud
Children and Media
Expert report highlights the importance to parents of reading to children!
Physics
Electric Backpack
Echoes of a Stretched Egg
Road Bumps
Plants
City Trees Beat Country Trees
Nature's Alphabet
Flower family knows its roots
Reptiles
Tortoises
Caimans
Copperhead Snakes
Space and Astronomy
Catching a Comet's Tail
Melting Snow on Mars
A Very Distant Planet Says "Cheese"
Technology and Engineering
Switchable Lenses Improve Vision
Space Umbrellas to Shield Earth
Toy Challenge
The Parts of Speech
What is a Preposition?
Pronouns
What is a Verb?
Transportation
Are Propellers Fin-ished?
Robots on a Rocky Road
Seen on the Science Fair Scene
Weather
Watering the Air
Recipe for a Hurricane
Where rivers run uphill
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Sticky Silky Feet

Comic book superhero Spider-Man uses tiny hairs on his fingertips to climb up walls. But he could have had another secret weapon to help him stick. Scientists have now found that some spiders can also make silk in their feet, which may sometimes help them get a firmer grip on a surface. Spiders are good at gripping walls with their legs. Thousands of little hairs on their feet make it possible. To test whether spiders also make these hairs wet to improve grip, scientists watched zebra tarantulas crawl up glass slides. When they tilted a glass slide until it was almost vertical, the spider slipped a few millimeters before attaching itself again. The scientists were surprised to see little threads stretching from its feet to the slide. When they studied the spider's feet under a special microscope, they found tiny silk-shooting spouts among the hairs. This was a surprise because scientists had previously thought spiders only use special organs near their stomachs to make silk. It's possible that, a long time ago, feet were the first body parts of spiders to produce silk. Only later in their evolutionary history did spiders develop spinnerets on their abdomens to produce silk for webs. If so, the researchers say, this could mean that the silk's original purpose was to help spiders climb and stick, rather than to build homes or trap prey.—C. Gramling

Sticky Silky Feet
Sticky Silky Feet








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