Agriculture
Making the most of a meal
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Flush-Free Fertilizer
Amphibians
Poison Dart Frogs
Salamanders
Newts
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Assembling the Tree of Life
Vent Worms Like It Hot
Roboroach and Company
Behavior
Body clocks
The Electric Brain
When Darwin got sick of feathers
Birds
Mockingbirds
Ibises
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Chemistry and Materials
A Butterfly's Electric Glow
Revving Up Green Machines
Screaming for Ice Cream
Computers
New twists for phantom limbs
Supersonic Splash
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Dinosaurs and Fossils
Dino Babies
The bug that may have killed a dinosaur
Battling Mastodons
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Earth
Vitamin D-licious Mushrooms
Shrinking Glaciers
Earth's Poles in Peril
Environment
Nanosponges Soak Up Pollutants
Cactus Goo for Clean Water
The Birds are Falling
Finding the Past
A Big Discovery about Little People
An Ancient Childhood
A Plankhouse Past
Fish
Sharks
Saltwater Fish
Sting Ray
Food and Nutrition
Chocolate Rules
Recipe for Health
A Pepper Part that Burns Fat
GSAT English Rules
Capitalization Rules
Finding Subjects and Verbs
Who vs. Whom
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The Annual GSAT Scholarships
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GSAT Exam Preparation
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GSAT Mathematics
Setting a Prime Number Record
10 Common Mistakes When Preparing for the GSAT Math Test
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Human Body
From Stem Cell to Any Cell
Teen Brains, Under Construction
Workouts: Does Stretching Help?
Invertebrates
Scorpions
Moths
Roundworms
Mammals
Sheep
Bats
Cats
Parents
Raise a Lifelong Reader by Reading Aloud
Expert report highlights the importance to parents of reading to children!
What Not to Say to Emerging Readers
Physics
The Pressure of Scuba Diving
Powering Ball Lightning
One ring around them all
Plants
Fast-flying fungal spores
Pumping Up Poison Ivy
Cactus Goo for Clean Water
Reptiles
Rattlesnakes
Chameleons
Cobras
Space and Astronomy
The two faces of Mars
Planning for Mars
Zooming In on the Wild Sun
Technology and Engineering
Squeezing Oil from Old Wells
Space Umbrellas to Shield Earth
Young Scientists Take Flight
The Parts of Speech
What is a Noun
What is a Preposition?
Countable and Uncountable Nouns
Transportation
Morphing a Wing to Save Fuel
Troubles with Hubble
Seen on the Science Fair Scene
Weather
A Change in Climate
Either Martians or Mars has gas
A Dire Shortage of Water
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Worms

A worm is an elongated soft-bodied invertebrate animal. The best-known is the earthworm, a member of phylum Annelida, but there are hundreds of thousands of different species that live in a wide variety of habitats other than soil. Originally the word referred to any creeping or a crawling animal of any kind or size, such as a serpent, caterpillar, snail, or the like (this old usage is preserved in the name "slow worm", actually a lizard). Later this definition was narrowed to the modern definition which still includes several different animal groups. Other invertebrate groups may be called worms, especially colloquially. Many insect larvae are called worms, such as the railroad worm, woodworm, glowworm, or bloodworms. Worms may also be called helminths, especially in medical or terminology when referring to parasitic worms, especially the Nematoda (roundworms) and Cestoda (tapeworms). Hence helminthology is the study of parasitic worms. When an animal, such as a dog, is said to have worms, it means that the dog is infested with parasitic worms, typically roundworm or tapeworm. Worm species differ in their abilities to move about on their own. Many species have bodies with no major muscles, and cannot move on their own. They must be moved by forces or other animals in their environment. Many species have bodies with major muscles, that let them move on their own. They are a type of muscular hydrostat. The fear of worms is known as 'scoleciphobia'.

Worms
Worms








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