Ancient RNA offers a glimpse into the life of a mammoth 39,000 years ago, challenging our understanding of its longevity. Researchers, including Marc Friedländer from Stockholm University, were astonished to find RNA that survived for 40,000 years, defying the conventional belief that RNA is highly unstable and degrades rapidly outside living cells. This discovery, published in the journal Cell, opens up exciting possibilities for studying history. Erez Aiden, a professor of biochemistry and molecular biology, suggests that improving RNA analysis techniques could revolutionize our understanding of the biological world's history. With the discovery of Yuka, a mammoth found in melting permafrost, researchers identified stress genes and new forms of microRNA, which are not found in modern-day elephants. This breakthrough has implications for de-extinction efforts and understanding ancient viruses, like SARS-CoV-2, which lack DNA. However, the study's success is limited to well-preserved specimens, and further research is needed to explore the mysteries of post-mortem molecular preservation.
