Agriculture
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Flush-Free Fertilizer
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Salamanders
Frogs and Toads
Poison Dart Frogs
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The Secret Lives of Grizzlies
Monkeys Count
Bee Disease
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The (kids') eyes have it
Wake Up, Sleepy Gene
The Smell of Trust
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Pencil Thin
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The solar system's biggest junkyard
The Shape of the Internet
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Earth
Earth's Lowly Rumble
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Pollution Detective
Fishing for Fun Takes Toll
Toxic Cleanups Get a Microbe Boost
Finding the Past
Stone Age Sole Survivors
Oldest Writing in the New World
Words of the Distant Past
Fish
Saltwater Fish
A Grim Future for Some Killer Whales
Skates
Food and Nutrition
Making good, brown fat
Symbols from the Stone Age
Packing Fat
GSAT English Rules
Who vs. That vs. Which
Subject and Verb Agreement
Pronouns
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Tarrant High overcoming the odds
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GSAT Mathematics
Math is a real brain bender
Prime Time for Cicadas
Losing with Heads or Tails
Human Body
Speedy Gene Gives Runners a Boost
Taste Messenger
Spitting Up Blobs to Get Around
Invertebrates
Leeches
Butterflies
Dragonflies
Mammals
Wolves
Siberian Husky
Porcupines
Parents
Choosing a Preschool: What to Consider
How children learn
What Not to Say to Emerging Readers
Physics
Road Bumps
The Mirror Universe of Antimatter
Powering Ball Lightning
Plants
Getting the dirt on carbon
Farms sprout in cities
Seeds of the Future
Reptiles
Garter Snakes
Snakes
Sea Turtles
Space and Astronomy
Gravity Tractor as Asteroid Mover
Pluto, plutoid: What's in a name?
A Dead Star's Dusty Ring
Technology and Engineering
Dancing with Robots
Sugar Power for Cell Phones
A Satellite of Your Own
The Parts of Speech
Countable and Uncountable Nouns
What is a Preposition?
What is a Verb?
Transportation
Reach for the Sky
Middle school science adventures
Flying the Hyper Skies
Weather
Catching Some Rays
Warmest Year on Record
Either Martians or Mars has gas
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Salamanders

Salamander is the common name applied to approximately 500 amphibian vertebrates with slender bodies, short legs, and long tails (order Caudata or Urodela). The moist skin of the amphibians limits them to habitats either near water or under some protection on moist ground, usually in a forest. Salamanders superficially resemble lizards, but are easily distinguished by their lack of scales. Switching from swimming to walking, walking to swimming: Some species are aquatic throughout life, some take to the water intermittently, and some are entirely terrestrial as adults. Their ability to switch between swimming and walking makes them interesting animals to study the evolution of locomotion during vertebrate evolution. The two types of gaits have been studied using neuromechanical simulations. They are capable of regenerating lost limbs. The female members of the suborder Salamandroidea have cloacal glands in their cloacal chamber called spermathecae used to store sperm, as well as cloacal lips to pick up the male spermatophores. The suborders Cryptobranchoidea and Sirenoidea have external fertilization. The rigors of terrestrial life: Some salamanders retain their juvenile, gilled morphology but become sexually mature in a process called neoteny. The Axolotl, Ambystoma mexicanum, is a textbook example of a neotenic salamander, although there are many more neotenic species within the Ambystoma species complex. The juvenile form is retained to avoid the rigors of terrestrial life. Most tiny, some huge: Species of salamanders are numerous and found in most moist or aqueous habitats in the northern hemisphere. Most are small but some reach up to 5 feet in length. They live in brooks and ponds and other moist locations. North America has the hellbender and the mudpuppy which can reach the length of a foot or more. In Japan and China the giant salamander is found, which reaches 5 feet (1.5m) and weighs up to 30 kilograms]. Hanging in the Northern Hemisphere: Salamander habitat is generally restricted to mostly the northern hemisphere, with the exception of a few species living in the northernmost part of South America. Although common on the European mainland, salamanders are not a native species of either Great Britain or Ireland.

Salamanders
Salamanders








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