Million-Year-Old Mammoth Genomes Reveal Lost Genetic Diversity

A groundbreaking genomic study has unearthed a treasure trove of long-lost genetic diversity in mammoth lineages spanning over a million years. Researchers analyzed 34 newly sequenced mammoth mitochondrial genomes, including specimens dating back to the Early and Middle Pleistocene. This unprecedented dataset, published in *Molecular Biology and Evolution*, reveals insights into mammoth evolutionary history and demonstrates the power of ancient DNA in characterizing past genetic diversity. The findings support an ancient Siberian origin for major mammoth lineages and highlight how population dynamics shaped the expansion and contraction of distinct genetic clades. The study also introduces an improved molecular clock dating framework, pushing the boundaries of ancient DNA research and providing a powerful tool for future studies of extinct and endangered species.