domingo, 9 de noviembre de 2014

The secret about the mosquitos

The base of the fourth films in the Jurassic Park series have been destabilized, because scientists have poured cold water on any hopes that dinosaurs can be resurrected in the way they are in the films. 
Since the director Steven Spielberg firstly came up with the idea of making a film in 1993 in which dinosaurs were resurrected from a little peace of DNA from a mosquito fossilized in amber 130 millions years ago, many scientists became sceptic and started to try to find an answers that can prove if this phenomenon could be even possible. So after a lot of efforts, those experts have confirmed that such techniques cannot be done. 
Using highly sensitive DNA sequencing techniques, researchers at the University of Manchester attempted to extract DNA from insects in subfossilised copal, the harden resin from trees that is a precursor of amber. The scientists found they were unable to detect any ancient DNA in the samples they examined, which were between 60 to 10,600 years old. 
However, by the time they try to extract the DNA from amber samples that are millions years do, the possibilities were not so many as they can expect from the films. 
Dr David Penney, an amber expert at the University of Manchester, said: "Intuitively, one might imagine that the complete and rapid engulfment in resin, resulting in almost instantaneous demise, might promote the preservation of DNA in a resin entombed insect, but this appears not to be the case. So, unfortunately, the Jurassic Park scenario must remain in the realms of fiction."

Nevertheless, Universal Pictures has not take the hint and has announced that the next year another film, Jurassic World will be released. 

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