An evolution revolution has begun after scientists extracted genetic information from a 1.7 million-year-old rhino tooth - the largest and oldest genetic data to ever be recorded. the new technology, named "Mass spectrometry-based protein sequencing" will enable us to retrieve reliable and rich genetic information from mammal fossils that are millions of years old, rather than just thousands of years old 1.7-Million-Year-Old Rhino Tooth Provides Oldest DNA Data Ever Studied