Agriculture
Seeds of the Future
Vitamin D-licious Mushrooms
Protecting Cows—and People—from a Deadly Disease
Amphibians
Frogs and Toads
Poison Dart Frogs
Newts
Animals
Ants on Stilts
Odor-Chasing Penguins
Insects Take a Breather
Behavior
Math Naturals
Making Sense of Scents
Mice sense each other's fear
Birds
Turkeys
A Meal Plan for Birds
Woodpecker
Chemistry and Materials
The hungry blob at the edge of the universe
Smelly Traps for Lampreys
A Diamond Polish for Ancient Tools
Computers
Toxic Dirt + Avian Flu = Science Fair Success
Hubble trouble doubled
Troubles with Hubble
Dinosaurs and Fossils
From Mammoth to Modern Elephant
Battling Mastodons
Hunting by Sucking, Long Ago
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2014 GSAT Results for Jamaican Kids
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Earth
Farms sprout in cities
Challenging the Forces of Nature
Detecting an Eerie Sea Glow
Environment
Plastic Meals for Seals
City Trees Beat Country Trees
The Wolf and the Cow
Finding the Past
Words of the Distant Past
An Ancient Childhood
Of Lice and Old Clothes
Fish
Manta Rays
Swordfish
Hammerhead Sharks
Food and Nutrition
The Color of Health
Turning to Sweets, Fats to Calm the Brain
Sponges' secret weapon
GSAT English Rules
Order of Adjectives
Capitalization Rules
Who vs. Whom
GSAT Exam Preparation Jamaica
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2014 GSAT Results for Jamaican Kids
GSAT Scholarship
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GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exam Preparation
GSAT Mathematics
Math and our number sense: PassGSAT.com
Monkeys Count
42,000 students will sit for the GSAT Exam in two weeks
Human Body
Germ Zapper
Nature's Medicines
Workouts: Does Stretching Help?
Invertebrates
Crabs
Tarantula
Krill
Mammals
African Warthogs
Wombats
African Wild Dog
Parents
How children learn
Children and Media
Choosing a Preschool: What to Consider
Physics
Dreams of Floating in Space
Hold on to your stars, ladies and gentlemen
The Particle Zoo
Plants
City Trees Beat Country Trees
Fungus Hunt
Seeds of the Future
Reptiles
Asp
Anacondas
Gila Monsters
Space and Astronomy
An Earthlike Planet
Solving a Sedna Mystery
Ready, Set, Supernova
Technology and Engineering
Weaving with Light
Supersuits for Superheroes
Young Scientists Take Flight
The Parts of Speech
Problems with Prepositions
Adjectives and Adverbs
What is a Preposition?
Transportation
Robots on the Road, Again
Troubles with Hubble
Morphing a Wing to Save Fuel
Weather
In Antarctica watch the heat (and your step)
A Change in Climate
The Best Defense Is a Good Snow Fence
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Newts

Newts are small, usually bright-coloured semiaquatic salamanders of North America, Europe and North Asia, distinguished from other salamanders by the lack of rib or costal grooves along the sides of the body. Credit: National Park ServiceLose an arm? Grow it back! Newts have the ability to regenerate limbs, eyes and spinal cords. The cells at the site of the injury have the ability to de-differentiate, reproduce rapidly, and differentiate again to create a new limb or organ. One theory is that the de-differentiated cells are related to tumour cells since chemicals which produce tumours in other animals will produce additional limbs in newts. Toxic Skin: Many newts produce toxins in their skin secretions as a defence mechanism against predators. The Taricha newts of western North America are particularly toxic; the Credit: National Park ServiceRough-skinned Newt (Taricha granulosa) of the Pacific Northwest produces more than enough tetrodotoxin to kill an adult human foolish enough to swallow a newt. Note that in order to produce harm, the toxins have to enter the body by being ingested or entering a break in the skin; it is safe to handle newts provided one thoroughly washes ones hands before eating. Toxic - humans! Theoretically it is safe to handle newts provided one thoroughly washes one's hands. However, human skin is toxic to newts. Metamorphosis: Newts can take several years to reach sexual maturity. It is known that their main breeding season is between February and June. They are hatched as tadpoles from eggs laid in ponds or slow-moving streams (see image below) and then undergo metamorphosis, during which time they commonly leave the water, only to return to the water to live out their adult lives. The red phase on land: During the time right after metamorphosis, many North American Newt species go through a phase called the eft phase. Their skin turns a reddish color and the animal lives its life on land, almost never seen in the water. It is not until the eft reaches adulthood will it begin to live its life in a more aquatic fashion, during which time it may rarely venture onto land.

Newts
Newts








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