Agriculture
Watching out for vultures
Middle school science adventures
Protecting Cows—and People—from a Deadly Disease
Amphibians
Poison Dart Frogs
Toads
Tree Frogs
Animals
Jay Watch
Sleepless at Sea
Sleep Affects a Bird's Singing
Behavior
Newly named fish crawls and hops
Brain cells take a break
Longer lives for wild elephants
Birds
Turkeys
Macaws
Rheas
Chemistry and Materials
A Framework for Growing Bone
Getting the dirt on carbon
The newest superheavy in town
Computers
Galaxies far, far, far away
Troubles with Hubble
A New Look at Saturn's rings
Dinosaurs and Fossils
Meet your mysterious relative
Teeny Skull Reveals Ancient Ancestor
From Mammoth to Modern Elephant
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
Easy Ways to Conserve Water
Getting the dirt on carbon
Weird, new ant
Environment
A 'Book' on Every Living Thing
City Trees Beat Country Trees
Where rivers run uphill
Finding the Past
Watching deep-space fireworks
A Long Haul
Traces of Ancient Campfires
Fish
Catfish
Basking Sharks
Hammerhead Sharks
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Strong Bones for Life
How Super Are Superfruits?
GSAT English Rules
Who vs. That vs. Which
Adjectives and Adverbs
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
Tarrant High overcoming the odds
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
GSAT Mathematics
Math of the World
Math Naturals
Math and our number sense: PassGSAT.com
Human Body
A New Touch
Sleeping Soundly for a Longer Life
Gut Germs to the Rescue
Invertebrates
Squid
Earthworms
Centipedes
Mammals
Wombats
Caribou
Pekingese
Parents
Choosing a Preschool: What to Consider
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Physics
Einstein's Skateboard
IceCube Science
Road Bumps
Plants
City Trees Beat Country Trees
A Giant Flower's New Family
Getting the dirt on carbon
Reptiles
Crocodiles
Sea Turtles
Komodo Dragons
Space and Astronomy
A Smashing Display
The two faces of Mars
A Planet from the Early Universe
Technology and Engineering
Weaving with Light
A Clean Getaway
Are Propellers Fin-ished?
The Parts of Speech
Pronouns
Problems with Prepositions
What is a Noun
Transportation
Tinkering With the Basic Bike
Robots on a Rocky Road
Ready, unplug, drive
Weather
The solar system's biggest junkyard
Weekend Weather Really Is Different
A Dire Shortage of Water
Add your Article

Cool Penguins

Raising a baby takes a lot of work, especially when that baby is a king penguin. Now, it looks like climate change will make life even harder for these birds. A new study suggests that warmer waters could shrink their numbers. Most king penguins live on the Crozet Archipelago, a group of islands in the Indian Ocean, about 1,000 miles north of Antarctica. After the penguin chicks are born in November (which is summer in the Southern Hemisphere), both parents spend 4 months collecting fish, some of which they regurgitate to feed their offspring. When the fish move to deeper waters in March, the adults leave their chicks alone for months. They swim hundreds of miles south. There, near the Antarctic ice, they spend the winter eating seafood, such as squid, to replenish their own energy stores. In October, nearly a year after their chicks were born, the parents return to feed and finish raising them. Scientists from the French National Center for Scientific Research (CNRS) in Strasbourg, France, have been studying king penguins on the Crozet Archipelago for a decade. Starting in 1998, Yvon Le Maho and colleagues implanted electronic ID tags under the skin of hundreds of penguins. These are the same types of tags you might put in your dog or cat, so you can track them if they get lost. The tags have allowed Le Maho's team to identify individual birds and keep track of details about them, such as how long they live, whether they return from their winter trips, and if their chicks manage to survive the winter. To see whether water temperatures affect the penguins, Le Maho compared his data with temperature records. Ocean surface temperatures vary from year to year. And previous research had shown that fewer squid, fish and other creatures grow when the water is warmer. Le Maho suspected that this drop in the food supply would make it harder for adult penguins to survive the tough times ahead. Indeed, his results showed that fewer adults survived during winters when the water was especially warm. Just a quarter of a degree (0.26°C to be exact) warming of seawater reduces adult penguins' survival by 9 percent in later years. King penguins can live for up to 30 years. And for now, the population still appears healthy. But a warming trend could spell big trouble for a bird that depends on cold and ice.—Emily Sohn

Cool Penguins
Cool Penguins








Designed and Powered by HBJamaica.com™