Agriculture
Fast-flying fungal spores
Chicken Eggs as Drug Factories
Springing forward
Amphibians
Tree Frogs
Salamanders
Salamanders and Newts
Animals
The Secret Lives of Grizzlies
Navigating by the Light of the Moon
Sea Lilies on the Run
Behavior
Fish needs see-through head
Sugar-pill medicine
Island of Hope
Birds
Hawks
Swifts
Condors
Chemistry and Materials
Toxic Dirt + Avian Flu = Science Fair Success
Picture the Smell
Earth from the inside out
Computers
Toxic Dirt + Avian Flu = Science Fair Success
Hitting the redo button on evolution
Programming with Alice
Dinosaurs and Fossils
Middle school science adventures
A Really Big (but Extinct) Rodent
Downsized Dinosaurs
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
Earth
Slower Growth, Greater Warmth
Slip Slidin' Away—Under the Sea
Distant Quake Changes Geyser Eruptions
Environment
Watching for Wildfires in Yellowstone
Easy Ways to Conserve Water
The Wolf and the Cow
Finding the Past
Traces of Ancient Campfires
Preserving Ancient Warrior Paint
Ancient Art on the Rocks
Fish
Catfish
Lungfish
Perches
Food and Nutrition
Sponges' secret weapon
How Super Are Superfruits?
Eat Out, Eat Smart
GSAT English Rules
Finding Subjects and Verbs
Pronouns
Capitalization Rules
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
How are students placed after passing the GSAT exam
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT stars reap scholarship glory
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
Math Naturals
Secrets of an Ancient Computer
GSAT Practice Papers | GSAT Mathematics | Maths
Human Body
The tell-tale bacteria
Electricity's Spark of Life
Hear, Hear
Invertebrates
Lobsters
Earthworms
Snails
Mammals
Grizzly Bear
Seal
Sun Bear
Parents
Raise a Lifelong Reader by Reading Aloud
Children and Media
How children learn
Physics
The Particle Zoo
Project Music
The Pressure of Scuba Diving
Plants
Stalking Plants by Scent
Tracking the Sun Improves Plant Pollen
Nature's Alphabet
Reptiles
Alligators
Reptiles
Anacondas
Space and Astronomy
An Earthlike Planet
Older Stars, New Age for the Universe
Saturn's Spongy Moon
Technology and Engineering
Algae Motors
Morphing a Wing to Save Fuel
Sugar Power for Cell Phones
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
Problems with Prepositions
Transportation
Charged cars that would charge
Middle school science adventures
Tinkering With the Basic Bike
Weather
Antarctica warms, which threatens penguins
A Change in Climate
Recipe for a Hurricane
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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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