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Springing forward
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New Gene Fights Potato Blight
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Sleepless at Sea
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The Colorful World of Synesthesia
Swedish Rhapsody
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A Light Delay
Music of the Future
Earth from the inside out
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Nonstop Robot
It's a Small E-mail World After All
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Ancient Critter Caught Shedding Its Skin
Three strikes wiped out woolly mammoths
Feathered Fossils
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Undersea Vent System Active for Ages
Warmest Year on Record
Arctic Algae Show Climate Change
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Watching for Wildfires in Yellowstone
A Vulture's Hidden Enemy
Fungus Hunt
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Big Woman of the Distant Past
Meet your mysterious relative
Writing on eggshells
Fish
Cleaning Up Fish Farms
Mako Sharks
Lampreys
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Recipe for Health
Food for Life
Symbols from the Stone Age
GSAT English Rules
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Order of Adjectives
Pronouns
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Tarrant High overcoming the odds
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Workouts: Does Stretching Help?
Cell Phones and Possible Health Hazards
Football Scrapes and Nasty Infections
Invertebrates
Sea Urchin
Black Widow spiders
Fleas
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African Warthogs
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What Not to Say to Emerging Readers
Children and Media
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
Extra Strings for New Sounds
Thinner Air, Less Splatter
One ring around them all
Plants
Bright Blooms That Glow
When Fungi and Algae Marry
Springing forward
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Chameleons
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Box Turtles
Space and Astronomy
The two faces of Mars
A Galaxy Far, Far, Far Away
Sounds of Titan
Technology and Engineering
Young Scientists Take Flight
Weaving with Light
A Satellite of Your Own
The Parts of Speech
What is a Noun
Pronouns
Adjectives and Adverbs
Transportation
How to Fly Like a Bat
Middle school science adventures
Seen on the Science Fair Scene
Weather
Recipe for a Hurricane
Watering the Air
Earth's Poles in Peril
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Songbirds

Listen outside in any season, at almost any time of day, and you'll hear them: songbirds. Although most birds make some kind of noise, songbirds put on a particularly brilliant show, using their voices to produce pleasing whistles, chirps, and melodies to challenge one another, attract a mate, or communicate with other members of their species. Bird songs between species are so unique that birdwatchers can identify species just by the song they're singing. A songbird is a bird belonging to the suborder Oscines of Passeriformes (ca. 4000 species), in which the vocal organ is developed in such a way as to produce various sound notes, commonly known as bird song. Songbirds evolved about 50 million years ago in the western part of Gondwana that later became Australia, New Zealand and Antarctica and later spread around the world. This 'bird song' is essentially territorial in that it communicates the identity and whereabouts of an individual to other birds and also signals sexual intentions. It is not to be confused with bird calls which are used for alarms and contact, and are especially important in birds that feed or migrate in flocks. Other birds have songs to attract mates or hold territory, but these are usually simple and repetitive, lacking the variety of many passerine songs. The monotonous repetition of the Common Cuckoo or Little Crake can be contrasted with the variety of a Nightingale or Marsh Warbler. Although many songbirds have songs which are pleasant to the human ear, this is not invariably the case. Many members of the crow family make croaks or screeches which sound harsh to humans

Songbirds
Songbirds








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