The scientists took the words of the song It’s a Small World and translated it into a code based on the four “letters” of DNA. They then created artificial DNA strands recording different parts of the song. These DNA messages, each about 150 bases long, were inserted into bacteria such as Deinococcus radiodurans (dubbed as the world’s toughest bacterium). The latter is especially good at surviving extreme conditions, says Wong. It can tolerate high temperatures, desiccation, ultraviolet light and ionising radiation doses 1000 times higher than would be fatal to humans.(src)
This is especially interesting for me, having been filled to the brim with lectures in Bacteriology. It’s amazing how some people can even think of doing these things.