Agriculture
Where Have All the Bees Gone?
Silk’s superpowers
Middle school science adventures
Amphibians
Bullfrogs
Toads
Salamanders
Animals
Elephant Mimics
Not Slippery When Wet
Blotchy Face, Big-Time Wasp
Behavior
Copycat Monkeys
Memory by Hypnosis
Baby Number Whizzes
Birds
Albatrosses
Finches
Kiwis
Chemistry and Materials
Moon Crash, Splash
Supersonic Splash
Lighting goes digital
Computers
Batteries built by Viruses
Hitting the redo button on evolution
It's a Small E-mail World After All
Dinosaurs and Fossils
Hall of Dinos
Winged Insects May Go Way Back
Supersight for a Dino King
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Greener Diet
Meteorites may have sparked life on Earth
Salty, Old and, Perhaps, a Sign of Early Life
Environment
Plastic Meals for Seals
Giant snakes invading North America
Antarctica warms, which threatens penguins
Finding the Past
Fakes in the museum
Ancient Cave Behavior
Big Woman of the Distant Past
Fish
Parrotfish
Mako Sharks
Eels
Food and Nutrition
Recipe for Health
The Essence of Celery
Yummy bugs
GSAT English Rules
Who vs. That vs. Which
Finding Subjects and Verbs
Problems with Prepositions
GSAT Exam Preparation Jamaica
The Annual GSAT Scholarships
Ministry of Education Announces 82 GSAT Scholarships for 2010
10 Common Mistakes When Preparing for the GSAT Math Test
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
2014 GSAT Results for Jamaican Kids
GSAT Scholarship
GSAT Mathematics
10 Common Mistakes When Preparing for the GSAT Math Test
Play for Science
Prime Time for Cicadas
Human Body
Music in the Brain
Spitting Up Blobs to Get Around
A Sour Taste in Your Mouth
Invertebrates
Flatworms
Shrimps
Bees
Mammals
Opposum
Rodents
Ponies
Parents
How children learn
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Physics
Project Music
Powering Ball Lightning
The Pressure of Scuba Diving
Plants
Springing forward
Sweet, Sticky Science
Flower family knows its roots
Reptiles
Komodo Dragons
Snakes
Alligators
Space and Astronomy
Evidence of a Wet Mars
Icy Red Planet
Super Star Cluster in the Neighborhood
Technology and Engineering
Are Propellers Fin-ished?
Squeezing Oil from Old Wells
Musclebots Take Some Steps
The Parts of Speech
What is a Noun
Pronouns
Countable and Uncountable Nouns
Transportation
How to Fly Like a Bat
Middle school science adventures
Revving Up Green Machines
Weather
Weekend Weather Really Is Different
The solar system's biggest junkyard
Arctic Melt
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™