Agriculture
Watering the Air
Cleaning Up Fish Farms
Protecting Cows—and People—from a Deadly Disease
Amphibians
Tree Frogs
Poison Dart Frogs
Bullfrogs
Animals
Navigating by the Light of the Moon
Baboons Listen for Who's Tops
Bee Disease
Behavior
Flower family knows its roots
Mind-reading Machine
Face values
Birds
Ducks
Turkeys
Pigeons
Chemistry and Materials
Cold, colder and coldest ice
The memory of a material
Revving Up Green Machines
Computers
Supersonic Splash
The Book of Life
Music of the Future
Dinosaurs and Fossils
Meet your mysterious relative
Fossil Fly from Antarctica
Dino Takeout for Mammals
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
Coral Gardens
Rodent Rubbish as an Ice-Age Thermometer
Earth's Poles in Peril
Environment
Easy Ways to Conserve Water
Fungus Hunt
Inspired by Nature
Finding the Past
Stone Age Sole Survivors
Big Woman of the Distant Past
Digging Up Stone Age Art
Fish
Basking Sharks
Carp
Lampreys
Food and Nutrition
Allergies: From Bee Stings to Peanuts
Strong Bones for Life
How Super Are Superfruits?
GSAT English Rules
Subject and Verb Agreement
Order of Adjectives
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
Mastering The GSAT Exam
The Annual GSAT Scholarships
Ministry of Education Announces 82 GSAT Scholarships for 2010
GSAT Exams Jamaica Scholarships
GSAT stars reap scholarship glory
2014 GSAT Results for Jamaican Kids
42,000 students will sit for the GSAT Exam in two weeks
GSAT Mathematics
Play for Science
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Practice Papers | GSAT Mathematics | Maths
Human Body
Hey batter, wake up!
Cell Phones and Possible Health Hazards
Spit Power
Invertebrates
Worms
Hermit Crabs
Ants
Mammals
Cornish Rex
Pugs
Doberman Pinschers
Parents
Children and Media
Expert report highlights the importance to parents of reading to children!
The Surprising Meaning and Benefits of Nursery Rhymes
Physics
One ring around them all
Gaining a Swift Lift
The Mirror Universe of Antimatter
Plants
Pumping Up Poison Ivy
Sweet, Sticky Science
Fast-flying fungal spores
Reptiles
Anacondas
Box Turtles
Turtles
Space and Astronomy
Wrong-way planets do gymnastics
A Puffy Planetary Puzzle
Evidence of a Wet Mars
Technology and Engineering
Young Scientists Take Flight
Morphing a Wing to Save Fuel
Shape Shifting
The Parts of Speech
What is a Noun
Pronouns
Problems with Prepositions
Transportation
Middle school science adventures
How to Fly Like a Bat
Morphing a Wing to Save Fuel
Weather
Catching Some Rays
The solar system's biggest junkyard
A Dire Shortage of Water
Add your Article

Whale Sharks

The whale shark (Rhincodon typus) is a distinctively-marked member of the subclass Elasmobranchii of the class Chondrichthyes. It is the largest shark and also the largest living fish. Record Holder: The greatest size accurately recorded was 12 meters (39 ft) long, with unofficial accounts of 18 meters (59 ft). It is not to be confused with the Basking shark (Cetorhinus maximus), the second largest fish. Big Mouth: A member of the order Orectolobiformes, it is a filter feeder. The shark has a capacious mouth which can be up to 1.5m (5 ft) wide and contain up to 300 rows of tiny teeth. Flat Head: As part of its feeding process, it also has five large pairs of gill arches. Two small eyes are located towards the front of the shark's wide, flat head. The body is mostly grey with a white belly; three prominent ridges run along each side of the animal and the skin is marked with a 'checkerboard' of pale yellow spots and stripes. These spots are unique with every whale shark. Because of the spots uniqueness they can be used to mark each animal and make an accurate population count. But so far the whale sharks have not been fully and accurately counted. Its skin can be up to 10 cm thick. Slow Swimmer: The shark has two pairs each of dorsal fins and pectoral fins. A juvenile whale shark's tail has a greater top fin than lower fin while the adult tail becomes semi-lunate, or crescent-shaped. The shark's spiracles are just behind the eyes. The whale shark is not an efficient swimmer; the entire body is in motion while the animal swims. The result of this motion, one that is very unusual for sharks, is an average speed of around 5 km/h. On the Menu: The whale shark feeds on phytoplankton, macro-algae, plankton, krill or nektonic life (small squid or vertebrates). The many rows of teeth play no role in feeding, instead, water is actively drawn into the mouth and is passed over gill rakers and then out through the gill arches. Any material caught in the rakers is swallowed. The sharks, however, are active feeders and target concentrations of plankton or fish by olfactory cues rather than simply 'vacuuming' constantly. According to sailors, whale sharks congregate at reefs off the Belizean Caribbean coast, supplementing their ordinary diet by feeding on the roe of giant cubera snappers, which spawn in these waters in May, June and July, and between the full and quarter moons of these months. Gentle Shark: When it is explained that most sharks are not dangerous to humans, this species is used as the leading example. Divers and snorkelers can swim around the giant fish without any problems. Where in the World: The shark is often seen in Thailand, the Maldives, the Red Sea, Western Australia (Ningaloo reef), Gladden Spit Marine Reserve in Belize, and at the Galapagos islands. They are regularly seen from December to May in the Philippines (Donsol). Lucky divers have also come across whale sharks in the Seychelles and in Puerto Rico. Between December and September, they are well known to swim along the bay of La Paz in the mexican Baja California. Birds and Bees: Like most sharks, the reproductive habits of the whale shark are obscure. Based on the study of a single egg recovered off the coast of Mexico in 1956, it was believed to be oviparous, but the capture of a pregnant female in July 1996 containing 300 young whale sharks indicates that they are viviparous with ovoviviparous development. The eggs remain in the body and the females give birth to live 40 to 60 cm young. It is believed that they reach sexual maturity at around 30 years and the life span has been estimated to be between 60 and 150 years.

Whale Sharks
Whale Sharks








Designed and Powered by HBJamaica.com™