Scientists have extracted and analyzed 34 new mammoth (Mammuthus spp.) mitochondrial genomes, including two Early Pleistocene and nine Middle Pleistocene mammoth specimens from Siberia and North America. They have identified the oldest known mammoth DNA in North America, from a 200,000-year-old specimen found in the Old Crow River, Yukon Territory, Canada. The results confirm previous research, showing that mammoths from around a million years ago...