Burgers contain rat and human DNA, study finds Prison Planet.com Posted on May 11, 2016 Posted in Aggregated No Comments Tagged with Sci Tech London Independent | A study of 258 burgers in the US finds unexpected additional – and lack of – ingredients. Share this:Share Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Share on LinkedIn (Opens in new window) LinkedIn Email a link to a friend (Opens in new window) Email