In Jurassic Park, scientists gathered dino DNA from the stomachs of mosquitoes frozen in amber. Shortly after the movie’s premiere, a team of researchers claimed that they had used the methods in the film, and had gotten a usable DNA sample. The group was unable to reproduce their results, leading to other researchers calling the experiment a hoax; but, that hasn’t stopped scientists from trying to bring back dinosaurs through other methods. One group of researchers is attempting to turn on dormant strings of DNA code in chicken embryos that they believe carry information from the birds’ prehistoric ancestors. They’ve had some success, too. By playing with the code, they’ve managed to give the birds reptilian tails and even teeth. If they wind up with velociraptors rampaging in their lab, they can’t say nobody warned them.

The Jurassic Park franchise will soon have the chance to inspire irresponsible science all over again. The 3D remake of the original Jurassic Park is coming to theaters on April 5, 2013. Jurassic Park 4, the first of the movies in the series to be shot in 3D, is set for release June 13, 2014.