This discovery was made by a group of Chinese University students in Hong Kong. They discovered a method to encrypt and store data in the DNA of E.Coli bacteria, with an outstanding effectiveness. Actually, they calculate that in just one gram of E. coli, there can be stored information equal to 450 two-terabyte hard drives, that is nearly one petabyte!. This will change the bad reputation that these bacteria have. Read the original article here.