A team of scientists has now discovered a form of natural selection that doesn’t rely on DNA. The new study has revealed that molecules, known as methyl groups, can modify the structure of DNA. Scientists have observed that organism yeast Cryptococcus neoformans has lost key genes for methylation about 50 to 150 million years ago. However, the fungus still has methyl groups in its chromosomes. Scientists will continue their research to find out how methylation works in C. neoformans, and whether this new form of evolution emerges in other organisms.