Agriculture
Flush-Free Fertilizer
Microbes at the Gas Pump
Earth-Friendly Fabrics
Amphibians
Toads
Tree Frogs
Newts
Animals
Vampire Bats on the Run
A Jellyfish's Blurry View
No Fair: Monkey Sees, Doesn't
Behavior
Lost Sight, Found Sound
Honeybees do the wave
Mosquito duets
Birds
Backyard Birds
Penguins
Ibises
Chemistry and Materials
Watching out for vultures
Boosting Fuel Cells
Earth from the inside out
Computers
The Book of Life
Small but WISE
The hungry blob at the edge of the universe
Dinosaurs and Fossils
Meet your mysterious relative
Dino-Dining Dinosaurs
The man who rocked biology to its core
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
Arctic Algae Show Climate Change
Slower Growth, Greater Warmth
Flower family knows its roots
Environment
The Best Defense Is a Good Snow Fence
Little Bits of Trouble
Will Climate Change Depose Monarchs?
Finding the Past
Sahara Cemetery
Big Woman of the Distant Past
Childhood's Long History
Fish
Skates
Puffer Fish
Mako Sharks
Food and Nutrition
Symbols from the Stone Age
Eat Out, Eat Smart
Chocolate Rules
GSAT English Rules
Problems with Prepositions
Who vs. That vs. Which
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
GSAT Scholarship
Preparing for the GSAT Exam
10 Common Mistakes When Preparing for the GSAT Math Test
GSAT Exams Jamaica Scholarships
GSAT Scholarship
GSAT stars reap scholarship glory
Results of GSAT are in schools this week
GSAT Mathematics
How to Slice a Cake Fairly
42,000 students will sit for the GSAT Exam in two weeks
Setting a Prime Number Record
Human Body
A Fix for Injured Knees
Sea Kids See Clearly Underwater
Running with Sneaker Science
Invertebrates
Ants
Termites
Invertebrates
Mammals
Pekingese
Ferrets
Deers
Parents
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
How children learn
Physics
Spin, Splat, and Scramble
The Pressure of Scuba Diving
Black Hole Journey
Plants
Pumping Up Poison Ivy
Farms sprout in cities
When Fungi and Algae Marry
Reptiles
Copperhead Snakes
Box Turtles
Cobras
Space and Astronomy
A Star's Belt of Dust and Rocks
Asteroid Moons
A Darker, Warmer Red Planet
Technology and Engineering
Drawing Energy out of Wastewater
Weaving with Light
Supersuits for Superheroes
The Parts of Speech
Adjectives and Adverbs
What is a Preposition?
Countable and Uncountable Nouns
Transportation
Tinkering With the Basic Bike
Revving Up Green Machines
Flying the Hyper Skies
Weather
In Antarctica watch the heat (and your step)
Weekend Weather Really Is Different
Science loses out when ice caps melt
Add your Article

Sleep Affects a Bird's Singing

It's easy to feel tongue-tied and forgetful when you've first woken up. After that slow start, though, your memory usually gets sharper and you're ready to go. And now, scientists say, the same may be true for young birds—at least when it comes to learning how to sing. A male zebra finch learns to sing 30 to 90 days after hatching. The baby bird begins by copying the songs of adult males. At first, the little guy chirps in a nonsensical, baby-talk kind of way. Over several days, though, this babbling turns into beautiful birdsong. Previous birdsong research had involved simply taping a few minutes of song at a time. For the new experiment, Sébastien Derégnaucourt of the City University of New York and his team spent 3 years creating a computer program that could record and analyze every sound a bird makes for weeks at a time. The study involved 40 birds, and the researchers collected a total of 40 million musical fragments, or syllables. When they compared 100 versions of each syllable from the evening with 100 counterparts from the next morning, the scientists found that the birds sang well in the evenings, but performed badly in the mornings. After being awake several hours, however, the young males regained their mastery of the material and then improved on the previous day's accomplishments. To see whether this dip in learning was caused by the same kind of pre-coffee fog that many people feel in the morning, the researchers prevented the birds from practicing first thing in the morning. They also tried keeping the birds from singing during the day, and they used a chemical called melatonin to make the birds nap at odd times. None of these disturbances kept the birds from progressing steadily, with a dip in singing ability after waking up and a surge later on. The researchers conclude that their study supports the idea that sleep helps birds learn. Studies of other animals have also suggested that sleep improve learning. Other researchers argue that the same data could be used to argue that sleep gets in the way of learning. One way to know which it is would be to show that sleep-deprived birds fail to learn.—E. Sohn

Sleep Affects a Bird's Singing
Sleep Affects a Bird's Singing








Designed and Powered by HBJamaica.com™