Agriculture
Earth-Friendly Fabrics
New Gene Fights Potato Blight
Chicken Eggs as Drug Factories
Amphibians
Frogs and Toads
Toads
Poison Dart Frogs
Animals
A Seabird's Endless Summer
Monkey Math
Feeding School for Meerkats
Behavior
Calculating crime
Supersonic Splash
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Birds
Turkeys
Kiwis
Storks
Chemistry and Materials
Nanomagnets Corral Oil
Meteorites may have sparked life on Earth
A Diamond Polish for Ancient Tools
Computers
Music of the Future
Getting in Touch with Touch
Hitting the redo button on evolution
Dinosaurs and Fossils
Dino Babies
Winged Insects May Go Way Back
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
Arctic Algae Show Climate Change
Vitamin D-licious Mushrooms
Snowflakes and Avalanches
Environment
A Change in Climate
Forests as a Tsunami Shield
Animal CSI or from Science Lab to Crime Lab
Finding the Past
Ancient Cave Behavior
Ancient Art on the Rocks
Traces of Ancient Campfires
Fish
Manta Rays
Salmon
Codfish
Food and Nutrition
Symbols from the Stone Age
How Super Are Superfruits?
Eat Out, Eat Smart
GSAT English Rules
Subject and Verb Agreement
Whoever vs. Whomever
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
GSAT Scholarship
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Practice Papers | GSAT Mathematics | Maths
2014 GSAT Results for Jamaican Kids
GSAT Mathematics
Math of the World
It's a Math World for Animals
Setting a Prime Number Record
Human Body
Disease Detectives
Attacking Asthma
Tapeworms and Drug Delivery
Invertebrates
Invertebrates
Crawfish
Bees
Mammals
Bloodhounds
Doberman Pinschers
Minks
Parents
Expert report highlights the importance to parents of reading to children!
Children and Media
How children learn
Physics
Black Hole Journey
Hold on to your stars, ladies and gentlemen
Road Bumps
Plants
Tracking the Sun Improves Plant Pollen
A Change in Leaf Color
A Giant Flower's New Family
Reptiles
Crocodilians
Komodo Dragons
Garter Snakes
Space and Astronomy
Slip-sliding away
A Puffy Planetary Puzzle
Wrong-way planets do gymnastics
Technology and Engineering
Dancing with Robots
Smart Windows
Squeezing Oil from Old Wells
The Parts of Speech
What is a Verb?
Problems with Prepositions
What is a Noun
Transportation
Reach for the Sky
Middle school science adventures
Flying the Hyper Skies
Weather
Watering the Air
The Best Defense Is a Good Snow Fence
Earth's Poles in Peril
Add your Article

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








Designed and Powered by HBJamaica.com™