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8 Extinct Species Science Can't Bring Back From The Grave

And two it can. Bad news everyone, DNA has a half-life of 521 years so no Dinotopia future for us.

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Palaeogeneticists in Copenhagen and Australia examined 158 leg bones from three extinct species of bird which still contained DNA. After lots of SCIENCE! it was determined the building blocks of life degrade completely after slightly over five hundred years.