Agriculture
Got Milk? How?
Chicken Eggs as Drug Factories
Flush-Free Fertilizer
Amphibians
Frogs and Toads
Salamanders
Bullfrogs
Animals
Vent Worms Like It Hot
Navigating by the Light of the Moon
Roach Love Songs
Behavior
Mice sense each other's fear
Eating Troubles
Island of Hope
Birds
Turkeys
Swans
Hummingbirds
Chemistry and Materials
A Butterfly's Electric Glow
Small but WISE
Flytrap Machine
Computers
Galaxies far, far, far away
New twists for phantom limbs
Middle school science adventures
Dinosaurs and Fossils
Downsized Dinosaurs
Some Dinos Dined on Grass
Middle school science adventures
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
Results of GSAT are in schools this week
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Earth
Quick Quake Alerts
Wave of Destruction
Detecting an Eerie Sea Glow
Environment
Animal CSI or from Science Lab to Crime Lab
Shrinking Fish
A 'Book' on Every Living Thing
Finding the Past
Ancient Art on the Rocks
Stonehenge Settlement
Stone Tablet May Solve Maya Mystery
Fish
Sting Ray
Barracudas
Trout
Food and Nutrition
In Search of the Perfect French Fry
A Pepper Part that Burns Fat
The Color of Health
GSAT English Rules
Adjectives and Adverbs
Order of Adjectives
Capitalization Rules
GSAT Exam Preparation Jamaica
GSAT Exam Preparation
Preparing for the GSAT Exam
The Annual GSAT Scholarships
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
GSAT Scholarship
GSAT Exam Preparation
GSAT Mathematics
Deep-space dancers
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Setting a Prime Number Record
Human Body
Attacking Asthma
Taking the sting out of scorpion venom
Workouts: Does Stretching Help?
Invertebrates
Starfish
Flatworms
Daddy Long Legs
Mammals
Orangutans
Polar Bear
African Zebra
Parents
What Not to Say to Emerging Readers
Raise a Lifelong Reader by Reading Aloud
Choosing a Preschool: What to Consider
Physics
IceCube Science
The Particle Zoo
Gaining a Swift Lift
Plants
Fastest Plant on Earth
The algae invasion
White fuzzy mold not as friendly as it looks
Reptiles
Lizards
Gila Monsters
Boa Constrictors
Space and Astronomy
Planets on the Edge
A Galaxy Far, Far, Far Away
A Family in Space
Technology and Engineering
Crime Lab
A Satellite of Your Own
Dancing with Robots
The Parts of Speech
Countable and Uncountable Nouns
Adjectives and Adverbs
Problems with Prepositions
Transportation
How to Fly Like a Bat
Where rivers run uphill
Flying the Hyper Skies
Weather
A Dire Shortage of Water
Weekend Weather Really Is Different
Earth's Poles in Peril
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™