Well, it looks like we may never have our own Jurassic Park. Scientists at the University of Manchester failed to pull DNA samples from insects trapped in 10,600 year-old amber, leading them to conclude that the chances of extracting intact DNA from samples millions of years older is likely impossible.
For those living in a paleolithic-era cave, the dinosaurs in Spielberg's 1993 classic, Jurassic Park, were spawned from DNA samples taken from amber-trapped ancient insects engorged with dinosaur blood. It's a fascinating idea, but unfortunately — or fortunately, depending on your opinion of dinosaurs — it's probably not gonna happen.
In the new study, David Penney and colleagues tried to extract DNA from insects in subfossilized copal, the hardened resin from trees that's a precursor to amber. But they couldn't do it; they weren't able to detect an ancient DNA in samples ranging in age from 60 to 10,10,600 years old.