How it Works Sauropods Same with Vacuum Cleaner
Type of sauropod dinosaurs, plant-eating animals that have a long neck with up to 9 meters such as Brachiosaurus and Apatosaurus (formerly called Brontosaurus), is the largest animal that ever lived on Earth. Its weight can reach 80 tons.
So far, researchers have been arguing about the usefulness of a long neck. However, Graeme Ruxton, researchers from the University of Glasgow and David Wilkinson of Liverpool John Moores University, UK in its report, published in Biology Letters, finally has the answer.
Using mathematical models and variations of parameters such as body weight, neck length, and height of the neck from the body, the researchers found that the long neck is useful for improving energy efficiency at the giant animals looking for food near the ground. Efficiency is obtained because they do not need to move the giant body.
So far, researchers have been arguing about the usefulness of a long neck. However, Graeme Ruxton, researchers from the University of Glasgow and David Wilkinson of Liverpool John Moores University, UK in its report, published in Biology Letters, finally has the answer.
Using mathematical models and variations of parameters such as body weight, neck length, and height of the neck from the body, the researchers found that the long neck is useful for improving energy efficiency at the giant animals looking for food near the ground. Efficiency is obtained because they do not need to move the giant body.
They conclude, neck Brachiosaurus 9 meters in length were able to save energy is necessary to issue up to 80 percent when looking for food than if the neck is only 6 feet long.
"Energy savings is enough to allow Brachiosaurus raise his head up to the top of the tree if necessary," wrote the researchers in a report, as quoted from Sciencemag, March 25, 2011. "However, if the neck length of more than 9 meters, energy efficiency is even lower," they say.
Similar opinion was expressed by Roger Seymour, researchers from the University of Adelaide, Australia. The energy required to pump blood from the heart to the head of a very large distance of 9 meters. "Possibly, the neck was used to search for food close to the ground," he said.
According to the researchers, how to work Brachiosaurus cylinder vacuum cleaner is similar to that produced around 1950 sampa the 1970s. Body weight they remain in one place, not moving and only the tube length are rotated back and forth to suck up dust from every corner of the room.
The two researchers also showed, mammals replaced dinosaurs such as Brachiosaurus and Apatosaurus has a more compact size and lightweight. "Similar to today's vacuum cleaner which can be shifted and moved around easily," said both.
In his report, also revealed evidence that evolution is a gigantic body and a long neck is a result of various factors, including evidence that sauropods did not chew their food, but more or less suck.
"If they have a heavy jaw and teeth, then dinosaurs would not be able to lift their heads," said Martin Sander, a researcher from the University of Bonn, Germany. "In fact, they are very small head for body size of it," he said.
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