Sunday 10 March 2013

8 AMAZING FACTS ABOUT CROCODILE At livealerts.blogspot.com

AMAZING FACTS

1. The largest crocodile species is saltwater crocodile (Crocodylus porosus), encountered from India to northern Australia and Fiji. In can reach 7 m (23 ft) in length and 1 tonne in weight! At 5 m (17 ft) length, it already has 0.5 tonne Even so, a crocodile egg is no larger than that of a goose The smallest crocodile is the dwarf crocodile (Osteolaemus tetraspis) from central Africa, which has a maximum length of 1.9 m (6.5 ft). It is more terrestrial than other crocodiles. 2. To "cry crocodile tears" is a common expression which is used for depicting fake sadness. It has its origins in the myth according to which reptiles weep while eating humans. But, believe it or not, crocodiles really do wipe while feasting, but rather due to physiological reasons than remorse. Their eyes can froth and bubble during the feeding. Air pushed through the sinuses could mix with tears in the animal's lacrimal (tear) glands and the whole content could be emptied into the eye; resulting the "fake" remorse. 3. Crocodile skin is considered one of the finest and best, being soft and durable. In many tribal societies, skin crocodile is used as a symbol of high status. But only the skin on the belly has these qualities; the back skin is covered in bones (called osteoderms) that reflects arrows, spears and even bullets!
4. Some populations venerated the crocodiles (like the ancient Egyptians). From some tribes in New Guinea, the crocodile is a totem god and those people make themselves crocodile-like body scarring, which is an extremely painful procedure. In the case of Australian Aborigines, some tribes were expert in crocodile hunt, while for others the crocodile hunt was taboo. 
5. Crocodiles display increased aggressiveness during the mating season (linked to the monsoon). 6. Each crocodile jaw carries 24 sharp teeth meant to grasp and crush, not to chew. That's why they swallow stones that grind the food inside their stomachs (the stomach stones also serve as ballast). The teeth are continuously replaced along the crocodile's life. Crocodiles can exert enormous pressure when closing their jaws, but the force for opening them is so weak, that an adhesive band is enough to keep a large crocodiles' jaw shut up. The powerful jaws can be extremely delicate, working like pencils, when removing offspring from the nest. Still, beware at the tail: it inflicts powerful blows. 7. Many times crocodiles stay on the river banks mouth wide open. That is not an aggressive posture, but a way to cool off: they sweat through the mouth!8. The crocodiles have a four-chambered heart like in birds (their closest relatives) and mammals, for an active life. Still

crocodiles swallow stones to help them dive deeper
sea horse has eyes that can move independently of each other
The penguin is the only bird that can swim but cannot fly elephants can hear sounds that we cannot pigs are among the smartest of all domasticated animals and are even smarter than doss!


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