Agriculture
Watering the Air
Keeping Bugs Away from Food
Vitamin D-licious Mushrooms
Amphibians
Frogs and Toads
Toads
Tree Frogs
Animals
Revenge of the Cowbirds
Navigating by the Light of the Moon
Polar Bears in Trouble
Behavior
Memory by Hypnosis
Lightening Your Mood
Babies Prove Sound Learners
Birds
Kiwis
Ibises
Kookaburras
Chemistry and Materials
Sticking Around with Gecko Tape
The hottest soup in New York
Revving Up Green Machines
Computers
Middle school science adventures
New eyes to scan the skies
It's a Small E-mail World After All
Dinosaurs and Fossils
An Ancient Feathered Biplane
A Big, Weird Dino
Dino-Dining Dinosaurs
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Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
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Earth
Slower Growth, Greater Warmth
A Dire Shortage of Water
Coral Gardens
Environment
City Trees Beat Country Trees
Pollution Detective
The Oily Gulf
Finding the Past
Early Maya Writing
Ancient Art on the Rocks
Of Lice and Old Clothes
Fish
Electric Ray
Flashlight Fishes
Cleaning Up Fish Farms
Food and Nutrition
Yummy bugs
Strong Bones for Life
Symbols from the Stone Age
GSAT English Rules
Who vs. That vs. Which
Subject and Verb Agreement
Whoever vs. Whomever
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March 21-22, 2013: Over 43,000 students will take the GSAT Exam
The Annual GSAT Scholarships
10 Common Mistakes When Preparing for the GSAT Math Test
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Results of GSAT are in schools this week
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GSAT Mathematics
How a Venus Flytrap Snaps Shut
It's a Math World for Animals
Monkeys Count
Human Body
A Long Trek to Asia
Smiles Turn Away Colds
Hey batter, wake up!
Invertebrates
Starfish
Grasshoppers
Crawfish
Mammals
Gerbils
African Leopards
Walrus
Parents
Choosing a Preschool: What to Consider
Children and Media
How children learn
Physics
Dreams of Floating in Space
Einstein's Skateboard
Speedy stars
Plants
Tracking the Sun Improves Plant Pollen
When Fungi and Algae Marry
White fuzzy mold not as friendly as it looks
Reptiles
Boa Constrictors
Crocodilians
Reptiles
Space and Astronomy
Rover Makes Splash on Mars
Older Stars, New Age for the Universe
A Very Distant Planet Says "Cheese"
Technology and Engineering
Model Plane Flies the Atlantic
Smart Windows
Morphing a Wing to Save Fuel
The Parts of Speech
Problems with Prepositions
Pronouns
What is a Preposition?
Transportation
Revving Up Green Machines
Tinkering With the Basic Bike
Troubles with Hubble
Weather
Weekend Weather Really Is Different
Where rivers run uphill
Earth's Poles in Peril
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Butterflies

A butterfly is a flying insect of the order Lepidoptera. Many butterflies have striking colours and patterns on their wings. When touched by humans, they tend to lose some scales, that look like a fine powder. If they lose too many scales, their ability to fly will be impaired. People who study or collect butterflies (or the closely related moths) are called lepidopterists. Butterfly watching is growing in popularity as a hobby. Diet: Butterflies live primarily on nectar from flowers. Some also derive nourishment from pollen, tree sap, rotting fruit, dung, and dissolved minerals in wet sand or dirt. Butterflies are also pollinators, and some -- like the monarch -- migrate over great distances each year. A taste for salt: Several species of butterflies need more sodium than provided by the nectar they drink from flowers. As such, they are attracted to the sodium in salt (which the males often give to the females to ensure fertility). As human sweat contains significant quantities of salt, they sometimes land on people. Confused identity: Butterflies are often confused with moths, but there are a few simple differences between them, including colour, habits, and pupating appearance. The easiest way to tell them apart is their appearance when at rest -- butterflies tend to rest with their wings spread open, while moths tend to rest with their wings closed. Funnel eggs: Butterfly eggs consist of a hard-ridged outer layer of shell, called the chorion. This is lined with a thin coating of wax which prevents the egg from drying out before the larva has had time to fully develop. Each egg contains a number of tiny funnel-shaped openings at one end, called micropyles; the purpose of these holes is to allow sperm to enter and fertilize the egg. Butterfly and moth eggs vary greatly in size between species, but they are all either round or oval in shape. Eating machines: Butterfly larvae, or caterpillars, are multi-legged eating machines. They consume plant leaves and spend practically all of their time in search of food. When the larva exceeds a minimum weight at a particular time of day, it will stop feeding and begin "wandering" in a quest for a suitable pupation site, usually the underside of a leaf. The larva transforms into a pupa (chrysalis), which then transforms into a butterfly by metamorphosis. To transform from the miniature wings visible on the outside of the pupa into large structures usable for flight, the pupal wings must absorb a great deal of nutrients. If one wing is surgically removed early on, the other three will grow to a larger size. Growing to fly: The adult, sexually mature, stage of the insect is known as the imago. As Lepidoptera, butterflies have four wings that are covered with tiny scales, but, unlike moths, the fore- and hindwings are not hooked together, permitting a more graceful flight. After it emerges from its pupal stage, a butterfly cannot fly for some time, because its wings have not yet unfolded. A newly-emerged butterfly needs to spend some time 'inflating' its wings with blood and letting them dry, during which time it is extremely vulnerable to predators.

Butterflies
Butterflies








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