Researchers have sequenced the oldest RNA ever recovered, taken from a woolly mammoth frozen for nearly 40,000 years. The RNA reveals which genes were active in its tissues, offering a rare glimpse into its biology and final moments. Surprisingly, the team also identified ancient microRNAs and rare mutations that confirm their mammoth origin. The finding shows that RNA can endure millennia—reshaping how scientists study extinct species.
Nurse Shortage in 2026: Why Nurses Are Leaving Hospitals
Nurses remain in high demand across the United States, but burnout, understaffing and workplace violence are pushing healthcare workers away from hospital jobs.
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