Watching out for vultures
Hungry bug seeks hot meal
Flush-Free Fertilizer
Tree Frogs
Elephant Mimics
Assembling the Tree of Life
The Littlest Lemurs
Making Sense of Scents
Longer lives for wild elephants
Brainy bees know two from three
Chemistry and Materials
Toxic Dirt + Avian Flu = Science Fair Success
Cooking Up Superhard Diamonds
The Buzz about Caffeine
Electronic Paper Turns a Page
Computers with Attitude
Two monkeys see a more colorful world
Dinosaurs and Fossils
An Ancient Feathered Biplane
Dino Bite Leaves a Tooth
Ancient Critter Caught Shedding Its Skin
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Slip Slidin' Away—Under the Sea
Warmest Year on Record
Earth from the inside out
An Ocean View's Downside
The Wolf and the Cow
Alien Invasions
Finding the Past
Oldest Writing in the New World
Prehistoric Trips to the Dentist
The Taming of the Cat
Puffer Fish
Great White Shark
Food and Nutrition
The Color of Health
How Super Are Superfruits?
Sponges' secret weapon
GSAT English Rules
Order of Adjectives
Who vs. Whom
Adjectives and Adverbs
GSAT Exam Preparation Jamaica
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Ministry of Education Announces 82 GSAT Scholarships for 2010
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GSAT stars reap scholarship glory
Access denied - Disabled boy aces GSAT
GSAT Mathematics
It's a Math World for Animals
Math Naturals
Losing with Heads or Tails
Human Body
Hear, Hear
Cell Phone Tattlers
Spitting Up Blobs to Get Around
Giant Squid
Great Danes
Prairie Dogs
How children learn
Choosing a Preschool: What to Consider
The Surprising Meaning and Benefits of Nursery Rhymes
Black Hole Journey
One ring around them all
The Mirror Universe of Antimatter
Sweet, Sticky Science
Fast-flying fungal spores
The algae invasion
Copperhead Snakes
Komodo Dragons
Space and Astronomy
Roving the Red Planet
Killers from Outer Space
Gravity Tractor as Asteroid Mover
Technology and Engineering
A Light Delay
Sugar Power for Cell Phones
Algae Motors
The Parts of Speech
Problems with Prepositions
Adjectives and Adverbs
Countable and Uncountable Nouns
Where rivers run uphill
Tinkering With the Basic Bike
Ready, unplug, drive
A Dire Shortage of Water
Science loses out when ice caps melt
Arctic Melt
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Of Lice and Old Clothes

Scratch, scratch, scratch, scratch. Head lice can be a real pain, and they can keep you out of school until you get them out of your hair. Now, it appears that head lice and their cousins, body lice, might help solve a longstanding mystery: When did people start wearing clothes? Was it half a million years ago, or was it perhaps only in the last 30,000 years? Scientists in Germany think they've found an answer by looking at the history of human lice, those tiny critters that make us all cringe and grab the medicated shampoo. Head lice dwell among the hairs on your head, and they like to feast on the tiny flakes of dead skin on your scalp. Body lice, however, live on your clothes and eat dead skin on the rest of your body. So, to have body lice, you need to have clothes. The researchers say that, at one time, there were just head lice. Body lice diverged from head lice about 70,000 years ago, give or take 40,000 years. The appearance of body lice suggests that people started wearing clothes at roughly the same time. Not everyone agrees with this view, though. Some say that people living in northern Europe half a million years ago would have needed clothes to survive the cold weather. Other scientists say they aren't sure that head lice and body lice really are separate species. Whatever the case may be, it seems there's one sure cure for body lice: going around naked!—S. McDonagh

Of Lice and Old Clothes
Of Lice and Old Clothes

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