Agriculture
Fast-flying fungal spores
Growing Healthier Tomato Plants
Watering the Air
Amphibians
Poison Dart Frogs
Bullfrogs
Newts
Animals
Stunts for High-Diving Ants
Big Squid
The Secret Lives of Grizzlies
Behavior
Baby Talk
Surprise Visitor
The Smell of Trust
Birds
Robins
Swifts
Geese
Chemistry and Materials
Bang, Sparkle, Burst, and Boom
The science of disappearing
Atomic Drive
Computers
A Classroom of the Mind
Programming with Alice
Galaxies far, far, far away
Dinosaurs and Fossils
The man who rocked biology to its core
Dino-bite!
Meet your mysterious relative
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
A Grim Future for Some Killer Whales
Less Mixing Can Affect Lake's Ecosystem
Surf Watch
Environment
Cactus Goo for Clean Water
Hazy with a Chance of Sunshine
Watching for Wildfires in Yellowstone
Finding the Past
Preserving Ancient Warrior Paint
Big Woman of the Distant Past
Watching deep-space fireworks
Fish
A Jellyfish's Blurry View
Mahi-Mahi
Whale Sharks
Food and Nutrition
How Super Are Superfruits?
A Pepper Part that Burns Fat
Making good, brown fat
GSAT English Rules
Who vs. Whom
Pronouns
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
March 21-22, 2013: Over 43,000 students will take the GSAT Exam
10 Common Mistakes When Preparing for the GSAT Math Test
Preparing for the GSAT Exam
GSAT Exams Jamaica Scholarships
Access denied - Disabled boy aces GSAT
GSAT Scholarship
GSAT Exam Preparation
GSAT Mathematics
Monkeys Count
Secrets of an Ancient Computer
Prime Time for Cicadas
Human Body
Disease Detectives
Nature's Medicines
Football Scrapes and Nasty Infections
Invertebrates
Mussels
Arachnids
Sponges
Mammals
Armadillo
Persian Cats
Squirrels
Parents
Choosing a Preschool: What to Consider
What Not to Say to Emerging Readers
How children learn
Physics
Spin, Splat, and Scramble
The Mirror Universe of Antimatter
Powering Ball Lightning
Plants
Fast-flying fungal spores
Tracking the Sun Improves Plant Pollen
A Giant Flower's New Family
Reptiles
Geckos
Caimans
Iguanas
Space and Astronomy
A Very Distant Planet Says "Cheese"
Sun Flips Out to Flip-Flop
Unveiling Titan
Technology and Engineering
Smart Windows
Slip Sliming Away
Space Umbrellas to Shield Earth
The Parts of Speech
What is a Noun
What is a Verb?
Pronouns
Transportation
Robots on the Road, Again
Are Propellers Fin-ished?
Robots on a Rocky Road
Weather
Warmest Year on Record
Weekend Weather Really Is Different
Recipe for a Hurricane
Add your Article

Crocodiles

A crocodile is any species belonging to the family Crocodylidae (sometimes classified instead as the subfamily Crocodylinae). The term can also be used more loosely to include all members of the order Crocodilia: i.e. the true crocodiles, the alligators and caimans (family Alligatoridae) and the gharial (family Gavialidae). Just the Facts: Crocodiles (colloquially called crocs) are large aquatic reptiles that live throughout the Tropics in Africa, Asia, the Americas and Australia. Crocodiles tend to congregate in slow-moving rivers and lakes, and feed on a wide variety of living and dead mammals and fish. Some species, notably the Saltwater crocodile of Australia and the Pacific islands, have been known to venture far out to sea. They are an ancient lineage, and are believed to have changed little since the time of the dinosaurs. Warning! The larger species of crocodiles can be very dangerous to humans. The Saltwater and Nile crocodiles are the most dangerous, killing hundreds of people each year in parts of South-East Asia and Africa. American alligators, Mugger crocodiles and possibly the endangered Black Caiman, are also very dangerous to humans. Lock Jaw: Crocodiles are very fast over short distances, even out of water. They have extremely powerful jaws and sharp teeth for tearing flesh, but cannot open their mouth if it is held closed, hence there are stories of people escaping from the long-snouted Nile Crocodile by holding its jaws shut. Indeed, zoologists will often subdue crocodiles for study or transport by taping their jaws or holding their jaws shut with large rubber bands cut from automobile inner tubes. All large crocodiles also have sharp welters and powerful claws. They have limited lateral movement in their neck, so on land one can find protection by getting even a small tree between the crocodile's jaws and oneself. Ambush Hunters: Crocodiles are ambush hunters, waiting for fish or land animals to come close, then rushing out to attack. As cold-blooded predators, they can survive long periods without food, and rarely need to actively go hunting. The crocodile's bite strength is up to 3,000 pounds per square inch, comparing to just 100 psi for a labrador retriever or 350 psi for a large shark. Despite their slow appearance, crocodiles are the top predators in their environment, and various species have been observed attacking and killing lions, large ungulates and even sharks. Cooperation Nation: A famous exception is the Egyptian Plover which is said to enjoy a symbiotic relationship with the crocodile. According to unauthenticated reports, the plover feeds on parasites that infest the crocodile's mouth and the reptile will open its jaws and allow the bird to enter to clean out the mouth. On the Menu: Crocodiles eat fish, birds, mammals and occasionally smaller crocodiles. Wild crocodiles are protected in many parts of the world, but they also are farmed commercially. Their hide is tanned and used to make leather goods such as shoes and handbags, whilst crocodile meat is also considered a delicacy in many parts of the world. The most commonly farmed species are the Saltwater and Nile crocodiles, while a hybrid of the Saltwater and the rare Siamese Crocodile is also bred in Asian farms. Farming has resulted in an increase in the Saltwater Crocodile population in Australia, as eggs are usually harvested from the wild, so landowners have an incentive to conserve crocodile habitat. Big Birds? Crocodiles are more closely related to birds and dinosaurs than to most animals classified as reptiles (though all of these are thought to probably be more closely related to each other than to Testudines (turtles and tortoises), and have correspondingly unusual features for reptiles, such as a four-chambered heart). World's Largest Reptile: The largest species of crocodile, also Earth's largest reptile, is the Saltwater Crocodile, found in northern Australia and throughout South-east Asia. There is a report of a Saltwater crocodile in Australia that was 27 feet (8.2 m) long. There is also a skull of a salt water crocodile from Orissa, India that is very large and the animal is estimated to have been 21-23 feet (6.4 to 7 m) long. The Largest Crocodile ever held in captivity is an Estuarine/Siamese hybrid named "YAI" (Born10 June 1972) at the famous Samutprakarn Crocodile Farm and Zoo, Thailand. He measures 6 m. (19 ft. 8 in.) in length and weighs 1,114.27 kg. (2,465 lb.) World Record: On June 16, 2006, A 23-feet (7.1m) giant saltwater crocodile in Orissa, India and was crowned the world's largest living crocodile. It lives in Bhitarkanika Wildlife Sanctuary and in June 2006, was entered in the Guinness Book of World Records. Medicinal Blood? Scientists in the United States have isolated a powerful agent in crocodile blood which could help conquer human infections immune to standard antibiotics. The discovery was made thanks to the curiosity of Jill Fullerton-Smith, a BBC science producer filming a documentary on salt-water crocodiles in Australia, (now former-) BBC Director-General Greg Dyke revealed.

Crocodiles
Crocodiles








Designed and Powered by HBJamaica.com™