Agriculture
Microbes at the Gas Pump
Seeds of the Future
Watering the Air
Amphibians
Salamanders and Newts
Newts
Bullfrogs
Animals
Cacophony Acoustics
Sleep Affects a Bird's Singing
Fishing for Giant Squid
Behavior
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
The case of the headless ant
Internet Generation
Birds
Rheas
Doves
Emus
Chemistry and Materials
The memory of a material
Cooking Up Superhard Diamonds
Music of the Future
Computers
Fingerprint Evidence
Small but WISE
Nonstop Robot
Dinosaurs and Fossils
Winged Insects May Go Way Back
Downsized Dinosaurs
Big Fish in Ancient Waters
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
Earth
Shrinking Glaciers
A Global Warming Flap
Undersea Vent System Active for Ages
Environment
Giant snakes invading North America
Shrimpy Invaders
Groundwater and the Water Cycle
Finding the Past
Traces of Ancient Campfires
The Puzzle of Ancient Mariners
Writing on eggshells
Fish
Skates and Rays
Flounder
Basking Sharks
Food and Nutrition
Eat Out, Eat Smart
In Search of the Perfect French Fry
Yummy bugs
GSAT English Rules
Finding Subjects and Verbs
Pronouns
Capitalization Rules
GSAT Exam Preparation Jamaica
10 Common Mistakes When Preparing for the GSAT Math Test
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
GSAT Exam Preparation
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
GSAT Exam Preparation
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Setting a Prime Number Record
Math is a real brain bender
How a Venus Flytrap Snaps Shut
Human Body
Hear, Hear
Kids now getting 'adult' disease
Speedy Gene Gives Runners a Boost
Invertebrates
Shrimps
Centipedes
Lice
Mammals
Hoofed Mammals
African Hyenas
Mule
Parents
Children and Media
Raise a Lifelong Reader by Reading Aloud
How children learn
Physics
Invisibility Ring
Speedy stars
Black Hole Journey
Plants
Seeds of the Future
Plants Travel Wind Highways
Farms sprout in cities
Reptiles
Reptiles
Cobras
Garter Snakes
Space and Astronomy
Unveiling Titan
Baby Star
Catching a Comet's Tail
Technology and Engineering
Smart Windows
Dancing with Robots
Weaving with Light
The Parts of Speech
What is a Noun
Countable and Uncountable Nouns
Pronouns
Transportation
Seen on the Science Fair Scene
Ready, unplug, drive
Tinkering With the Basic Bike
Weather
Earth's Poles in Peril
Catching Some Rays
Either Martians or Mars has gas
Add your Article

Salamanders and Newts

Salamanders and newts are amphibians with long, slender bodies, short legs, and long tails. Although they resemble lizards, they are true amphibians, and have soft, moist skin that, for many species, means a life spent close to water. Like toads and frogs, salamnders can also secret poison through their skin as a defense. Salamanders, newts and caecilians (a legless, salamander-type animal) all belong in the order Amphibia along with frogs and toads, ancestors of the first aquatic vertebrates to begin to colonize that other earthly environment - land. Comprising a mere 350 species out of the 4000 or so known species of amphibians, salamanders and newts are found only in the Americas and in the temperate zones of Northern Africa, Asia and Europe. There is little distinction between the amphibians known as "newt" and "salamander." What is called a salamander in the Americas may well be called a newt in Europe. Some apply the name "salamander" to the fully aquatic and fully terrestrial animals, while applying the name "newt" to those animals that live on land from late summer through winter, entering water to breed in the spring. For the sake of simplicity, we well refer to all types as "salamanders." Often mistaken for lizards, salamanders (sometimes called "sallies" by people who raise them) have soft, moist skin covering their long bodies and even longer tails. They have no scales, claws or external ear openings. The larva are sometimes confused with the frog tadpoles, but their heads do not get as large as the tadpoles. They have feather gill structures present just behind the head on the sides of the neck area, and their front legs develop first; frogs lack the external gill structures, and their hind legs erupt before their forelegs. The majority of the salamanders and their larva are carnivorous, taking in insects, small invertebrates; the large adults eat fish, frogs and other salamanders. Secretive, essentially voiceless animals, they are chiefly nocturnal, hiding under fallen logs and damp leaf litter during the daylight hours. The larvae begin feeding immediately after hatching, devouring tiny aquatic animals. There are three types of salamanders: totally aquatic, semi-aquatic, and completely terrestrial; some of the latter are arboreal. The aquatic live out their complete life cycles in the water. The semi-aquatic live primarily on land, hibernating during the winter, and enter the water as breeding season begins. After mating and egging is complete, they once again return to land. The terrestrial salamanders spend their entire lives on land, rarely entering the water though they are never far from it. Early born young will reach the terrestrial stage by the end of the year; late born young usually overwinter as larvae, metamorphosing the following spring.

Salamanders and Newts
Salamanders and Newts








Designed and Powered by HBJamaica.com™