Agriculture
Getting the dirt on carbon
Middle school science adventures
Keeping Bugs Away from Food
Amphibians
Toads
Bullfrogs
Newts
Animals
G-Tunes with a Message
A Seabird's Endless Summer
The History of Meow
Behavior
Lightening Your Mood
The Smell of Trust
Sugar-pill medicine
Birds
Birds We Eat
Cassowaries
Pigeons
Chemistry and Materials
Atom Hauler
Moon Crash, Splash
Music of the Future
Computers
Nonstop Robot
Graphene's superstrength
The science of disappearing
Dinosaurs and Fossils
The Paleontologist and the Three Dinosaurs
Hunting by Sucking, Long Ago
Teeny Skull Reveals Ancient Ancestor
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
Hot Summers, Wild Fires
Digging into a Tsunami Disaster
Killer Space Rock Snuffed Out Ancient Life
Environment
Bald Eagles Forever
Shrimpy Invaders
A Vulture's Hidden Enemy
Finding the Past
If Only Bones Could Speak
Ancient Art on the Rocks
A Long Trek to Asia
Fish
Mako Sharks
Codfish
Trout
Food and Nutrition
Turning to Sweets, Fats to Calm the Brain
Healing Honey
In Search of the Perfect French Fry
GSAT English Rules
Pronouns
Order of Adjectives
Problems with Prepositions
GSAT Exam Preparation Jamaica
GSAT Practice Papers | GSAT Mathematics | Maths
42,000 students will sit for the GSAT Exam in two weeks
GSAT Scholarship
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
GSAT Exam Preparation
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
Deep-space dancers
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Play for Science
Human Body
Taking the sting out of scorpion venom
A Sour Taste in Your Mouth
A New Touch
Invertebrates
Horseshoe Crabs
Crawfish
Dragonflies
Mammals
Badgers
Canines
Donkeys
Parents
Choosing a Preschool: What to Consider
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
Physics
The Particle Zoo
Echoes of a Stretched Egg
The Pressure of Scuba Diving
Plants
Hungry bug seeks hot meal
Stalking Plants by Scent
The algae invasion
Reptiles
Caimans
Garter Snakes
Turtles
Space and Astronomy
Super Star Cluster in the Neighborhood
An Earthlike Planet
A Moon's Icy Spray
Technology and Engineering
Spinach Power for Solar Cells
Riding Sunlight
Machine Copy
The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
What is a Preposition?
Transportation
Seen on the Science Fair Scene
Troubles with Hubble
Middle school science adventures
Weather
Recipe for a Hurricane
Where rivers run uphill
Either Martians or Mars has gas
Add your Article

Great White Shark

Reaching lengths of about 6 meters (20 feet) and weighing almost 2,000 kilograms (4,000 pounds), the Great White is the world's largest predatory fish. The Sixth Sense: Great Whites have a sixth sense given by the Ampullae of Lorenzini, which enables them to detect the electromagnetic field emitted by the movement of living animals. A Great White's sense of sight is useful, but the shark does not depend on it. A shark primarily uses its extra senses (i.e, Electrosense and Mechanosense) to locate prey from far off. Then, the shark uses smell and hearing to further verify that its target is food. At close range, the shark utilizes sight for the attack. Ambush Predator: The shark will often in ambush deliver a massive disabling bite and then back off to allow the prey to expire. This tactic allows the animal to avoid combat with dangerous prey, such as sea lions. It also has allowed occasional rescue of humans bitten by the animal, though it appears to attack humans mostly in error. Bad Reputation: White sharks' reputation as ferocious predators is well-earned, yet they are not (as was once believed) indiscriminate "eating machines". They typically hunt using an "ambush" technique, taking their prey by surprise from the bottom. This is the only shark known to lift its head above the sea surface to gaze at other objects such as prey; this is known as "spy-hopping". It is theorized that the shark may also be able to smell better this way, since smells travel through air faster than through water. On the Menu: Great White sharks primarily eat fish, smaller sharks, turtles, dolphins, and pinnipeds such as seals and sea lions. They are apex predators; the only animals known to attack them are other Great Whites, sperm whales and orcas. Rows and Rows of Teeth: Great Whites, like many other sharks, have rows of teeth behind the main ones, allowing any that break off to be rapidly replaced. Their teeth are unattached to the jaw and are retractable, like a cat's claws, moving into place when the jaw is opened. Their teeth also rotate on their own axis (outward when the jaw is opened, inward when closed). The teeth are linked to pressure and tensor-sensing nerve cells. This arrangement seems to give their teeth high tactile sensitivity. Sizes and Scales: While the average length of a Great White is 4 to 5 meters (females generally being larger than males), the question of the maximum size of Great White sharks has been subject to much debate, conjecture, and misinformation. Today, most experts contend that the Great White's "normal" maximum size is about 6 m (20 ft), with a maximum weight of about 1900 kg (4200 lb). Any claims much beyond these limits are generally regarded as doubtful, and are closely scrutinized. Shark Life-cycle: A White Shark can reproduce when a male's length is around 3.8 m and a female's length is around 4.5 to 5 meters. Their lifespan has not been definitively established, though many sources estimate 3040 years. It would not be unreasonable to expect such a large marine animal to live longer however. Mysterious Mating: There is still a great deal that is unknown about Great White behavior, such as mating habits. Birth has never been observed, but several pregnant females have been examined. Great Whites are ovoviviparous, the eggs developing in the female's uterus, hatching there and continuing to develop until they are born, at which point they are perfectly capable predators. The embryos can feed off unfecundated eggs. The delivery takes place in the period transitioning spring and summer. Almost nothing is known about how and where the Great White mates.

Great White Shark
Great White Shark








Designed and Powered by HBJamaica.com™