Agriculture
New Gene Fights Potato Blight
Middle school science adventures
Watering the Air
Amphibians
Toads
Tree Frogs
Poison Dart Frogs
Animals
Tool Use Comes Naturally to Crows
Little Beetle, Big Horns
Jay Watch
Behavior
Mosquito duets
Lightening Your Mood
Surprise Visitor
Birds
Rheas
Parakeets
Woodpecker
Chemistry and Materials
A Spider's Silky Strength
A Diamond Polish for Ancient Tools
The memory of a material
Computers
Games with a Purpose
New twists for phantom limbs
New eyes to scan the skies
Dinosaurs and Fossils
A Big, Weird Dino
Ancient Critter Caught Shedding Its Skin
Message in a dinosaur's teeth
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Earth
Shrinking Glaciers
Arctic Algae Show Climate Change
Pollution at the ends of the Earth
Environment
Pumping Up Poison Ivy
A Change in Climate
When Fungi and Algae Marry
Finding the Past
Settling the Americas
Writing on eggshells
Watching deep-space fireworks
Fish
Sting Ray
Seahorses
Megamouth Sharks
Food and Nutrition
Eat Out, Eat Smart
Making good, brown fat
The mercury in that tuna
GSAT English Rules
Problems with Prepositions
Whoever vs. Whomever
Pronouns
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Tarrant High overcoming the odds
Results of GSAT are in schools this week
GSAT Exams Jamaica Scholarships
GSAT Scholarship
Access denied - Disabled boy aces GSAT
GSAT stars reap scholarship glory
GSAT Mathematics
Play for Science
It's a Math World for Animals
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Human Body
Opening a Channel for Tasting Salt
Don't Eat That Sandwich!
Cell Phone Tattlers
Invertebrates
Centipedes
Dragonflies
Ticks
Mammals
Bulldogs
Weasels and Kin
Chihuahuas
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
Raise a Lifelong Reader by Reading Aloud
Expert report highlights the importance to parents of reading to children!
Physics
Gaining a Swift Lift
The Mirror Universe of Antimatter
Thinner Air, Less Splatter
Plants
Seeds of the Future
Pumping Up Poison Ivy
Flower family knows its roots
Reptiles
Rattlesnakes
Black Mamba
Boa Constrictors
Space and Astronomy
Planets on the Edge
An Earthlike Planet
Asteroid Moons
Technology and Engineering
Drawing Energy out of Wastewater
Shape Shifting
Dancing with Robots
The Parts of Speech
Adjectives and Adverbs
What is a Noun
What is a Preposition?
Transportation
Are Propellers Fin-ished?
Ready, unplug, drive
Robots on the Road, Again
Weather
Watering the Air
Antarctica warms, which threatens penguins
A Change in Climate
Add your Article

Fishy Sounds

Although coral reefs look peaceful, they're noisy places. Shrimp make popping noises that sound like bacon frying in a pan. Fish click their jaws or make rumbling sounds as they swim around. Such a loud, continuous racket may sound strange to snorkelers, but new experiments suggest that this reef noise attracts baby fish looking for a place to settle down. For a long time, biologists have wondered how reef fish find a home. Most reef fish spend the first part of their lives in open water. The baby fish, called larvae, are only about as big as a crumb. Scientists used to think that, after hatching, larvae drifted wherever ocean currents took them, perhaps hundreds or thousands of miles away. The fish couldn't control where they went. If the larvae were lucky, the currents carried them into a forest of coral where they could live. It turns out that, although the larvae are small, they actually become pretty strong swimmers. With this skill, fish larvae might be able to control where they go. And, although little fish do venture into open water, they seem to stick closer to where they hatched than scientists had expected. But, without a map of the ocean floor, how can these tiny critters find a reef to call home? Sound can travel for long distances under water. So, Stephen Simpson of the University of Edinburgh and his coworkers proposed that baby fish can hear the racket made by reef creatures. If so, the fish could follow the noise to join the party. To test their hypothesis, the scientists created a bunch of small, artificial reefs in the waters off Lizard Island in Australia's Great Barrier Reef. In some coral clumps, they played recordings of fish and shrimp sounds throughout the night. In others, it was quiet. When the researchers checked back the next morning, they discovered that about twice as many young cardinalfish and damselfish had been lured to the noisy reefs as had come to the quiet reefs. So, like kids drawn by the shouts and laughter coming from a playground, baby fish seem to follow the noises of other reef dwellers to find a place where they want to be.K. Ramsayer

Fishy Sounds
Fishy Sounds








Designed and Powered by HBJamaica.com™