Selasa, 26 Juni 2012


The Biggest Animals Kingdom and in The World | Crocodile | Crocodiles are among the most biologically complex reptiles despite their prehistoric look. The physical characteristics of a crocodile make you a thief to be successful. Its aerodynamic body enables it to swim faster. Webbed feet are an advantage in shallower water where the animal is moving sometimes on foot. Crocodiles have a tab palatal a rigid tissue at the back of the mouth, which blocks the penetration of water. Like other archosaurs are diapsid crocodile, although the post-temporal fenestrae are reduced. Crocodilian scales have assumed that pores in sensory function, similarly to the fishing line side. Crocodiles are very fast over short distances, even out of the water. 

The bite pressure crocodile is more than 5000 psi (30,000 kPa), compared to only 335 psi (2300 kPa) for a rottweiler, 400 pounds (2800 kPa) square inch of a large shark white, 800 psi (6000 kPa) to 1,000 psi (7000 kPa) for a hyena, or 2000 psi (10,000 kPa) for a large alligator, the jaws are opened, but a set very weak muscles. Crocodiles can thus be used to study or recording transport holding jaws or mandibles with their major bands of rubber tubes inside of cars, even damped closed. Herodotus claimed Nile crocodiles had a symbiotic relationship with certain birds, such as the Egyptian Plover which give mouth of the crocodile and get leeches feed on the blood of a crocodile, with no evidence of this interaction actually occurs in some species of crocodiles, it is very likely mythical or fictional allegorical. Many large crocodiles swallow stones (called gastroliths or stomach stones) that can serve as ballast to balance your body, or assist in grinding the food for birds like to bite.

Crocodiles can produce sounds during distress and in aggressive displays.  Crocodiles eat fish, birds, mammals and occasionally smaller crocodiles. Crocodiles are protected in many parts of the world, but they are also grown commercially. Their skins are tanned and used as leather shoes and handbags, crocodile meat is also considered a delicacy. The most cultivated species are salt and Nile crocodiles, while a hybrid of the Saltwater and the rare Siamese crocodile is also created on farms in Asia. Crocodiles are more closely related to birds and dinosaurs than to most animals classified as reptiles used to have three in the group Archosauria ("ruling reptiles"). Crocodile embryos do not have sex chromosomes, and in contrast to humans, sex is not genetically determined. Crocodiles may have a form of instinct. 

The land speed record for a crocodile is 17 km / h (11 mph) on a galloping freshwater crocodiles in Australia measured. The maximum speed varies from species to species. Certain species can gallop, including Cuban crocodiles, New Guinea crocodiles, African dwarf crocodiles and even smaller Nile crocodiles. Crocodiles can reach speeds of 10 or 11 km / h (about 7 miles per hour) when they "belly run", and often faster if the river slipping muddy. Crocodiles do not have sweat glands and let heat through the mouth. The BBC-TV you reported the Nile crocodile that lurked a long time underwater to catch prey is built a large oxygen debt.

Size varies greatly between species, from the dwarf crocodile to the saltwater crocodile. Types and Osteolaemus Palaeosuchus grow (4.9 feet) for an adult size of only 1 m (3.3 ft) to 1.5 m. Larger species can most 4.85 meters (15.9 feet) long and weigh well reach more than 1,200 kg (2,600 lb). Crocodiles have sexual dimorphism, with males much larger and growing faster than females. Despite their large adult crocodiles start their life around 20 centimeters (7.9 inches) long. The largest species of crocodile is the saltwater crocodile in eastern India, northern Australia, Southeast Asia and in the surrounding waters. Two major certifiable records are both 6.2 meters (20 ft) crocodile. 

If the second crocodile skin that was actually was measured by Jerome zoologist Montague, and skins as are known to underestimate the actual size of the animal, it is possible that this crocodile was at least another 10 cm in length. The largest crocodile ever be kept in captivity is an Estuarine Siamese hybrid named Yai (Thai: ใหญ่, meaning big) (born June 10, 1972) at the famous Samut prakarn Crocodile Farm and Zoo, Thailand. This animal is 6 meters (19.69 feet) (19 ft 8 in) long and weighing 1114.27 kg. The crocodile was shot near Dhamara in 1926 and later its skull was preserved by the king after Kanika. Experts estimate the crocodile animal was 20 feet (6.1 m) to 23 feet (7.0 meters) in length, as was the size of the skull, 1/9 of the length of the body measured.

Measuring crocodile age is not reliable, although several techniques are used to derive a reasonable estimate. One of the oldest crocodiles recorded died in a zoo in Russia. A freshwater crocodile male at Australia Zoo is estimated to be 130 years old. As a result of the shooting was this crocodile (known affectionately as "Mr. Freshy" called) lost his right eye. Crocodiles have a smooth skin on the belly and sides, while the dorsal surfaces are armored with large osteoderms.
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