Monday, January 21, 2008

World's Top hunters

In this universe every living being depends on the other for one or more things . The primary is one is the food . Each and every being preys for food, i will give some information about the world's top hunters they are :



1) Crocodile

2)Great white shark

3)The Python

4)The white Eagle

5)The Archer fish



The first one the crocodile . The crocodile is the intelligent amphibian living on the earth . It has its sensors near its mouth . Any small disturbances like the vibrations produced when A small pin is sensed by the croc . when ever the croc spots its prey two of them come to the spot where the prey is . The first one pulls the animal inside the water and the second one dives and catches it and drags it into the water with a high speed .



The second one is the great white shark. The great white shark is the king in the sea. Its spots the prey by manipulating the amount of shining the body is producing. when it spots its prey it comes with a speed of 50 kph so that it can catch hold of the prey correctly. At this speed if it attacks a human being , the bone will be crushed like salt



The third one is the python . The python can not really see the prey it depicts from the level of IR radiation coming from the its prey.The python has got two sensory receptors that collect the IR radiation, this helps the python to find its prey during night times. once it spots its prey it will attack on the head of the prey The python's head can stretch up to 180 and it twists the prey such that it clogs the air from entering the lungs and soon the heart stops beating.Watch this as to how a python kills a big prey.





The fourth one is the eagle .Eagle is known for its perfection. Its can spot its prey from a height of 10-20KM, god has designed its eye in such a way that its eye can spot its prey even its moving
from a great height. After spotting a prey it locks on the prey and does not look for any other .Eagle eyes are the same size (weight) as human eyes (though a full grown adult Bald Eagle weighs no more than about 14 pounds!) But an eagle eye has a much different shape from ours. as you can see on the right. The back is flatter and larger than the back of our eye, giving an eagle a much larger image than we can see. And its retina has much more concentrated rod and cone cells-the cells that send sight information to the brain. Some animals, including humans, have a special area on their retina called the fovea where there is an enormous concentration of these vision cells. In a human, the fovea has 200,000 cones per millimeter, giving us wonderful vision. In the central fovea of an eagle there are about a MILLION cones per millimeter. That's about the same number of visual cells as the finest computer monitor has on its entire screen when set at its highest resolution. The resolution for a person would be similar to setting a computer's screen at a much lower resolution.




Let's compare how much clearer an eagle's view of a distant dragonfly would be compared to a human's view of the same dragonfly, if the fovea were the only difference between our eyes:

Eagle vs. Human Vision

how a distant dragonfly might look to an eagle

how the same dragonfly might look to a person

How a distant dragonfly might look to an eagle

How the same dragonfly might look to a person


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The fifth one is the archer fish. The archer fish has two barrels near its gills and when it spots its prey it spills the water through the barrel with a great force so that its prey falls on to the surface of the water as u can see
on the right . you can also have a look at the video as to how a archer fish preys.

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