God created something den gan design the most perfect. Design or gan in animals have been designed in such a way as den gan food. So is a chameleon. But from this animal was found astonishing facts. The fact is super speed chameleon tongues catch its prey.
Jurriaan de Groot of Leiden University, and Johan van Leeuwen of Wageningen University, took the films Ray X high-speed, ie 500 frames per second, in order to investigate how the chameleon tongue works when capturing prey. These films showed that the tip of the tongue chameleon accelerating 50 g (g = gravitational constant). Acceleration is five times greater than that achieved by a jet fighter.
Text books zoologist explains that ballistic chameleon tongue muscles strengthened by a piece of accelerator (accelerator). This muscle extends when pressing down on the tongue bone, which form cartilage stiff in the middle of the tongue, which wraps.However, in a study that has been approved for issue by the scientific journal Proceedings of the Royal Society of London (Series B), two morphological expertswho studied the eating habits of chameleons found the other elements of theassociated den gan rapid movement of the tongue of this animal.
The researchers dissected jarin gan tongue and found that the accelerator muscle was not strong enough to generate the force that is required is alone. Den ganresearching chameleon tongue, they discovered the existence of at least 10 packs slippery, which until then unknown, in between the accelerator muscle and bone of the tongue.
These packets, which is attached to the tongue bone at the tip of the nearest dengan mouth, containing observed berajutan protein fibers spiral. These fibers solidifyand change shape when the accelerator muscle to shrink and store power like a piece of rubber bands that depressed.
When we reach the tip of the tongue bone round, packets are tight and this extends simultaneously sliding and shrinking den gan strength and threw the tongue. As fast as these fibers sliding of the tongue bone, packets to each other as separate tubes of a telescope, and therefore achieve the coverage longest tongue. Van Leeuwen said, "This is a telescopic catapult."
These slingshots have another characteristic that is very striking. The tip of the tongue takes the form of hollow when struck prey. When ejected, the tongue may protrude as far as six times its length when resting in the mouth, and two times the length of his own body.
Muscle groups den gan properties that differ tongue impeccably cast, memercepatnya, causing the tongue takes the form of suction when it hit the preyand then quickly withdraw.
These slingshots have another characteristic that is very striking. The tip of the tongue takes the form of hollow when struck prey. When ejected, the tongue may protrude as far as six times its length when resting in the mouth, and two times the length of his own body.
Muscle groups den gan properties that differ tongue impeccably cast, memercepatnya, causing the tongue takes the form of suction when it hit the preyand then quickly withdraw.
These muscle groups do not hinder each other their respective functions, but it works den gan way that synced in hit the prey and pull the tongue back into her mouth in less than a second. Additionally, thanks to cooperation between the visual system and brain, the position of prey were measured and orders for ballistic tongue to "shoot!" is given by the nerves that transmit signals in the brain.
source : http://blog-apa-aja.blogspot.com/2011/04/ternyata-lidah-bunglon-lebih-cepat-5x.html
