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long-necked dinosaur served food vacuum extraction

British scientists showed that the long necks served giant dinosaurs modern vacuum in the search and extraction of food from the earth's surface, a mechanism that reduced the spending power of these animals, according to an article in the journal Biology Letters.
With the help of her long neck, dinosaurs save up to 80% of its energy in search of food. After setting at one point his big body, animals with food in your neck looking for the next space without changing place, a function similar to that meet modern vacuum cleaners through long sleeves all the dust collected in a room without constant motion.
The authors of the research, the British Graeme Ruxton, University of Glasgow and David Wilkinson of the University of Liverpool John Moores, "said the length of a neck longer than nine feet, as in Brachiosaurus, led to a decrease in the efficiency of energy absorption food.
An optimum length of neck allowed these giants of the Jurassic period to obtain food from the tops of the trees. The teeth of these dinosaurs were used exclusively for grinding plant food, it was "absorbed" literally on the road digestive, signed by the researchers.
The research concludes that contrary to what is believed to be the giants of Jurassic period used their necks to obtain food from the tops of the trees, but in fact they were looking for food under their feet. Besides lifting the head to the tops of the trees would require of them an increase in energy expenditure by 50%.

RIA Novosti