Ever since the film "Jurassic Park" demonstrated how DNA technology could bring a long-extinct creature back to life, people have daydreamed about someday walking with the dinosaurs.
Of course we're a long, long way away from that happening, but de-extinction isn't just the stuff of science fiction. A group called The Lazarus Project has succeeded in raising from the dead an extinct species of frog.
Scientists were able to clone an embryo of the frog. Though it didn't live more than a few days, genetic tests of the embryo showed that the dividing cells contained the genetic makeup of the extinct frog.
The project has just been named one of the best "inventions" of the year by Time Magazine. Here to tell us more about this project is professor Mike Archer who's leading the research in Australia.