Amazing facts
The biggest land animal is the African Elephant. It can weigh over 5 tons.
By the side of an elephant, a man looks and feels very small. Yet some animals are so small that a human eye cannot see them. Even among mammals, there are shrews and mice that size less than a human finger and are much smaller than the elephant’s smallest toe. A human being is an enormous creature next to a pygmy shrew, but the largest person in the world is small beside an elephant or a giraffe, which is the tallest mammal, about 6 M (20 ft)
* The blue whale is also a mammal, though it lives in the sea. A land animal as big as a blue whale would be impossible-- its bones would not bear its body weight. If you put an elephant next to a blue whale, it does not look large any more! Yes, the size of anything depends on our point of view!
* Sleep & You
We need six sleep hours to relax and rejuvenate our brains each night, with an additional one to three hours to repair and 
* Nile delta is sinking
Geologists warn that the Nile delta is slowly sinking below sea level. The slow subsidence does not mean immediate floods but could become soaked in salt, rendering it useless, Daniel Smith and his colleagues at the Smithsonian institution in Washington say. Combined with a gradual rise in sea-level, the whole area is losing about five mm [two tenths of an inch] a year, they wrote in a report in the science journal Nature.
* Indonesia’s volcanoes
Indonesia, which has over 200 volcanoes, is the country with the maximum concentration of volcanoes. The Krakatoa, which caused the loudest explosion, is in Indonesia. It erupted on Aug. 27, 1883 and its explosion was heard nearly 4800 km. away.
* A Tiny Monkey
Brazil has the world’s greatest number of monkey species. Of about 250 known species, 80 are in Brazil. The world’s second smallest species {Sagui Dwarf } was discovered there by a Dutch scientist Marc Van Roosmalen in 1997. An average adult of the species measures only 10cm. The smallest known monkey is the Pygmy Marmoset, with an average size of 9.1cm.
* Snakes have no external ears. Therefore, they do not hear the music of a “snake charmer”. Instead, they are probably responding to the movements of the snake charmer and the flute. However, sound waves may travel through bones in their heads to the middle ear.
* The tongue of snakes has no taste buds. Instead, the tongue is used to bring smells and tastes into the mouth. Smells and tastes are then detected in two pits, called “Jacobson’s organs”, on the roof of their mouths. Receptors in the pits then transmit smell and taste information to the brain.
* At the radio station, the announcer speaks into a microphone. The microphone changes the sound of his voice into an electrical signal. This signal is weak and can’t travel very far, so it’s sent to a transmitter. The transmitter mixes the signal with some strong radio signals called carrier waves. These waves are then sent out through a special antenna at the speed of light! They reach the antenna of your radio. Your antenna “catches” the signal, and the radio’s amplifier strengthens the signal and sends it to the speakers. The speakers vibrate, and your ears pick up the vibrations and your brain translates them into the voice of the radio announcer back at the station. When you consider all the places the announcer’s voice travels
(From the internet)
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