Agriculture
Earth-Friendly Fabrics
Fast-flying fungal spores
Cleaning Up Fish Farms
Amphibians
Salamanders and Newts
Frogs and Toads
Newts
Animals
Fishing for Giant Squid
Lucky Survival for Black Cats
A Microbe Nanny for Young Wasps
Behavior
A Recipe for Happiness
Mosquito duets
Between a rock and a wet place
Birds
Parakeets
Songbirds
Doves
Chemistry and Materials
Big Machine Reveals Small Worlds
Sweeeet! The Skinny on Sugar Substitutes
Scientist Profile: Wally Gilbert
Computers
Earth from the inside out
Games with a Purpose
Hubble trouble doubled
Dinosaurs and Fossils
From Mammoth to Modern Elephant
A Big, Weird Dino
Fossil Fly from Antarctica
E Learning Jamaica
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Flower family knows its roots
Slip Slidin' Away—Under the Sea
A Great Quake Coming?
Environment
A Vulture's Hidden Enemy
Will Climate Change Depose Monarchs?
A Change in Time
Finding the Past
Meet your mysterious relative
Little People Cause Big Surprise
Big Woman of the Distant Past
Fish
Parrotfish
Halibut
Carp
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
Chocolate Rules
Moving Good Fats from Fish to Mice
GSAT English Rules
Who vs. Whom
Pronouns
Capitalization Rules
GSAT Exam Preparation Jamaica
2014 GSAT Results for Jamaican Kids
10 Common Mistakes When Preparing for the GSAT Math Test
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
GSAT Exam Preparation
GSAT Mathematics
Math of the World
Math and our number sense: PassGSAT.com
How to Slice a Cake Fairly
Human Body
Dreaming makes perfect
Spitting Up Blobs to Get Around
Sleeping Soundly for a Longer Life
Invertebrates
Jellyfish
Squid
Wasps
Mammals
Boxers
Dogs
Wombats
Parents
How children learn
Expert report highlights the importance to parents of reading to children!
Children and Media
Physics
Hold on to your stars, ladies and gentlemen
Dreams of Floating in Space
Spin, Splat, and Scramble
Plants
Cactus Goo for Clean Water
Assembling the Tree of Life
Farms sprout in cities
Reptiles
Copperhead Snakes
Sea Turtles
Boa Constrictors
Space and Astronomy
A Darker, Warmer Red Planet
Planets on the Edge
Intruder Alert: Sweeping Space for Dust
Technology and Engineering
Slip Sliming Away
Roll-Up Computer Monitors to Go
Drawing Energy out of Wastewater
The Parts of Speech
Countable and Uncountable Nouns
Adjectives and Adverbs
Problems with Prepositions
Transportation
Middle school science adventures
Tinkering With the Basic Bike
Morphing a Wing to Save Fuel
Weather
Polar Ice Feels the Heat
Arctic Melt
The Best Defense Is a Good Snow Fence
Add your Article

If Only Bones Could Speak

Language is one trait that separates people from other animals. Words give us the power to communicate complicated ideas, and this skill has taken us far. No one knows exactly when our ancestors started talking, but new evidence suggests that it might have happened a long, long, long time ago. A set of bones found last year in central Asia shows that human ancestors living 1.8 million years ago were capable of speaking to one another. The fossils, which include several types of spine bones (or vertebrae), were found at a site called Dmanisi in the country of Georgia. They belonged to a human ancestor known as Homo erectus. Anthropologists from the University of Pennsylvania in Philadelphia and the Georgian State Museum in Tbilisi compared the fossil bones with more than 2,200 vertebrae from people, chimpanzees, and gorillas. The structure of the ancient human's spine, they found, could have supported the muscles and nerves needed for speech. It's impossible to prove that our ancient ancestors did in fact talk, but there was nothing that would have stopped them physically from discussing the weather. The new finding counters previous interpretations of a 1.6-million-year-old skeleton found in Kenya in 1984. The backbone, which belonged to a 16-year-old boy, appeared too small to support the structures necessary for speech. Now, some scientists say that the boy had simply not grown correctly. With better nutrition, his spine would probably have been bigger. Still, the final verdict isn't in. Some scientists say that speech began only about 50,000 years ago, roughly 150,000 years after our species, Homo sapiens, emerged on Earth. Before then, they argue, neck bones were too short to allow a full range of speech sounds from the vocal tract. However, many populations today, including Australian aborigines, have similarly short neck vertebrae, but that doesn't keep these people from talking, say the authors of the new study. If only the bones could speak!—E. Sohn

If Only Bones Could Speak
If Only Bones Could Speak








Designed and Powered by HBJamaica.com™