Deinococcus radiodurans is listed in the Guinness Book of World Records as “the world’s toughest bacterium,” and it is fully deserving of that title.
Scientists discovered the red, spherical bacterium that later came to be known as deinococcus radiodurans about 70 years ago, when examining a can of ground meat that had spoiled despite having been sterilized by exposure to doses of radiation in the megarad range. Research would later show that this lowly bacterium can withstand 10,000 times the amount of radiation that would normally kill a human being, thanks to a miraculous ability to repair numerous DNA double-strand breaks in a matter of hours.
