Agriculture
Chicken Eggs as Drug Factories
Silks superpowers
Flush-Free Fertilizer
Amphibians
Poison Dart Frogs
Bullfrogs
Frogs and Toads
Animals
Sleepless at Sea
Stunts for High-Diving Ants
Mouse Songs
Behavior
Training Your Brain to Feel Less Pain
Bringing fish back up to size
Flower family knows its roots
Birds
Crows
Carnivorous Birds
Waterfowl
Chemistry and Materials
Meteorites may have sparked life on Earth
When frog gender flips
Graphene's superstrength
Computers
Middle school science adventures
Batteries built by Viruses
Two monkeys see a more colorful world
Dinosaurs and Fossils
Big Fish in Ancient Waters
Have shell, will travel
Hunting by Sucking, Long Ago
E Learning Jamaica
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
2014 GSAT Results for Jamaican Kids
Earth
Slower Growth, Greater Warmth
A Grim Future for Some Killer Whales
Distant Quake Changes Geyser Eruptions
Environment
A Stormy History
A 'Book' on Every Living Thing
The Down Side of Keeping Clean
Finding the Past
A Human Migration Fueled by Dung?
Traces of Ancient Campfires
Meet your mysterious relative
Fish
Eels
Salmon
Codfish
Food and Nutrition
The Color of Health
A Pepper Part that Burns Fat
The Essence of Celery
GSAT English Rules
Who vs. Whom
Whoever vs. Whomever
Adjectives and Adverbs
GSAT Exam Preparation Jamaica
Ministry of Education Announces 82 GSAT Scholarships for 2010
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
Mastering The GSAT Exam
GSAT Exams Jamaica Scholarships
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT stars reap scholarship glory
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
It's a Math World for Animals
Monkeys Count
How to Slice a Cake Fairly
Human Body
Nature's Medicines
A Sour Taste in Your Mouth
Hear, Hear
Invertebrates
Millipedes
Cockroaches
Horseshoe Crabs
Mammals
Dalmatians
Baboons
Moles
Parents
The Surprising Meaning and Benefits of Nursery Rhymes
What Not to Say to Emerging Readers
Choosing a Preschool: What to Consider
Physics
Electric Backpack
The Mirror Universe of Antimatter
Gaining a Swift Lift
Plants
Cactus Goo for Clean Water
A Change in Leaf Color
Farms sprout in cities
Reptiles
Copperhead Snakes
Black Mamba
Snakes
Space and Astronomy
Saturn's New Moons
A Smashing Display
A Planet from the Early Universe
Technology and Engineering
Are Propellers Fin-ished?
Toy Challenge
Musclebots Take Some Steps
The Parts of Speech
What is a Verb?
Adjectives and Adverbs
Countable and Uncountable Nouns
Transportation
Middle school science adventures
Where rivers run uphill
Tinkering With the Basic Bike
Weather
A Change in Climate
The Best Defense Is a Good Snow Fence
In Antarctica watch the heat (and your step)
Add your Article

Sea Turtles

Sea turtles (Chelonioidea) are turtles found in all the world's oceans with the exception of the Arctic Ocean, and some species travel between oceans. The Leatherback is the only sea turtle that does not have a hard shell, instead carrying a mosaic of bony plates beneath its leathery skin. Big Boys: The Leatherback Sea Turtle is the largest, measuring six or seven feet (2 m) in length at maturity, and three to five feet (1 to 1.5 m) in width, weighing up to 1300 pounds (600 kg). Most other species are smaller, being two to four feet in length (0.5 to 1 m) and proportionally less wide. There are seven types of sea turtles: Kemp's Ridley, Flatback, Green, Olive Ridley, Leatherback, Loggerhead, and Hawksbill. The Leatherback Sea Turtle (Dermochelys coriacea) is the biggest of all living turtles, reaching a length of over 2.7 m (8 ft) and weight of 900 kg (1,500 lb). The Leatherback Sea Turtle is found in all tropic and subtropic oceans. It is the only extant species in the genus Dermochelys and the family Dermochelyidae. One Special Turtle: This species has many unique features that distinguish it greatly from other sea turtles. Its shell lacks the bony scutes of other turtles, comprising mainly connective tissue. Its metabolic rate is about 3 times higher than one would expect for a reptile of its size; this, coupled with counter-current heat exchangers, the insulation provided by its oily body and large size, allow it to maintain a body temperature as much as 18 C (64 F) above that of the surrounding water. Some scientists hypothesize that the Leatherback might have some capacity to generate its own body heat (like a mammal), although reptiles in general have been defined as ectotherms ("cold-blooded") and are thought not to be able to do so. Peanut Butter and Jellyfish: The beak of the Leatherback turtle is specially hooked to help it bite jellyfish and its throat has backward-facing barbs to help it swallow them. These throat hooks have caused Leatherbacks problems - they swallow plastic bags, which look like the gelatinous animals they prey on, and these indigestible bags then clog up their throats, preventing them feeding and eventually killing them. Dead leatherbacks have been found with plastic bags, pieces of hard plastic, and monofilament fishing line in their stomachs. Who Needs a Map? Sea turtles have an extraordinary sense of time and location. They are highly sensitive to the Earth's magnetic field and probably use it to navigate. They live up to 189 years. The fact that most species return to nest at the locations where they were born seems to indicate an imprint of that location's magnetic features. The Ridley turtles are especially peculiar because instead of nesting individually like the other species, they come ashore in one mass arrival known as an "arribada" (arrival). With the Kemp's ridley this occurs during the day and on only one beach in the entire world. Their numbers used to range in the thousands but due to the effects of extensive egg poaching and hunting in previous years the numbers are now in the hundreds. Birds and Bees: After about 30 years of maturing, adult female Sea turtles return to the land to nest, usually on the same beach from which they hatched. This can take place every two to four years in maturity. They make from four to seven nests per nesting season. They dig a hole with their hind flippers and lay from 70 to 170 eggs in it (depending on the species) before covering it up and returning to the ocean. Tiny Turtle Troubles: Some of the eggs are unfertilized 'dummy eggs' and the rest contain young turtles. Incubation takes about 2 months. When the eggs hatch, these baby turtles dig their way out and seek the ocean. Only a very small proportion of them (at most 1 in 100) will be successful, as many predators are waiting to eat them.

Sea Turtles
Sea Turtles








Designed and Powered by HBJamaica.com™