Agriculture
Growing Healthier Tomato Plants
Getting the dirt on carbon
Treating peanut allergy bit by bit
Amphibians
Bullfrogs
Tree Frogs
Salamanders
Animals
Insects Take a Breather
Armadillo
Who's Knocking?
Behavior
Meet your mysterious relative
Supersonic Splash
Body clocks
Birds
Geese
Carnivorous Birds
Ibises
Chemistry and Materials
Atom Hauler
Earth from the inside out
A New Basketball Gets Slick
Computers
It's a Small E-mail World After All
Hitting the redo button on evolution
Graphene's superstrength
Dinosaurs and Fossils
Meet the new dinos
Battling Mastodons
Feathered Fossils
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
Polar Ice Feels the Heat
Snowflakes and Avalanches
The Rise of Yellowstone
Environment
Spotty Survival
Acid Snails
Food Web Woes
Finding the Past
Decoding a Beverage Jar
Traces of Ancient Campfires
An Ancient Childhood
Fish
Flashlight Fishes
Hagfish
Mako Sharks
Food and Nutrition
How Super Are Superfruits?
Making good, brown fat
Eat Out, Eat Smart
GSAT English Rules
Problems with Prepositions
Whoever vs. Whomever
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
The Annual GSAT Scholarships
Tarrant High overcoming the odds
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Exam Preparation
GSAT stars reap scholarship glory
GSAT Mathematics
Math and our number sense: PassGSAT.com
10 Common Mistakes When Preparing for the GSAT Math Test
Math of the World
Human Body
A Sour Taste in Your Mouth
Germ Zapper
Tapeworms and Drug Delivery
Invertebrates
Mollusks
Krill
Butterflies
Mammals
African Wildedbeest
Donkeys
Cocker Spaniels
Parents
Choosing a Preschool: What to Consider
What Not to Say to Emerging Readers
How children learn
Physics
Thinner Air, Less Splatter
Einstein's Skateboard
Road Bumps
Plants
Stalking Plants by Scent
Cactus Goo for Clean Water
When Fungi and Algae Marry
Reptiles
Caimans
Rattlesnakes
Alligators
Space and Astronomy
Burst Busters
Solving a Sedna Mystery
Planets on the Edge
Technology and Engineering
Beyond Bar Codes
Smart Windows
Drawing Energy out of Wastewater
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
What is a Verb?
Transportation
Revving Up Green Machines
Where rivers run uphill
Flying the Hyper Skies
Weather
Warmest Year on Record
Recipe for a Hurricane
Either Martians or Mars has gas
Add your Article

Symbols from the Stone Age

As modern-day people, we like to think we're pretty smart, especially compared with our ancestors who lived many thousands of years ago. Now, some anthropologists say that our ancestors may have been smarter than we usually give them credit for. Rocks recently found in a cave in Israel suggest that people were using objects and colors to represent other things more than 90,000 years ago. This kind of symbolic thinking—where, for example, the color red might stand for danger or a shape for a certain animal—was long thought to be a more recent development. In the Qafzeh Cave in Israel, Erella Hovers of the Hebrew University of Jerusalem looked at human remains dating back more than 90,000 years. Among some of the oldest skeletons, the researchers found 71 pieces of a type of pigment called red ocher along with ocher-stained stone tools. Chemical analyses suggest that the ocher had been heated. Hovers and her coworkers suspect that people brought lumps of ocher to the cave, heated them up, and used them with mollusk shells for symbolic reasons when they buried their dead. Even today, some cultures use red to symbolize fertility or life. Other researchers argue that using ocher was only a preliminary step. They think that real symbolic culture developed only about 50,000 years ago. More advanced kinds of symbolism, such as books and magazines, didn't come along until much later than that.—E. Sohn

Symbols from the Stone Age
Symbols from the Stone Age








Designed and Powered by HBJamaica.com™