Journal Journal: Mammoths in Alaska 8,000 years ago, detected through DNA 1
DNA traces of mammoths have been detected in Alaska. "Sedimentary ancient DNA" (sedaDNA) was found in permafrost containing material from 11,000 to 7,000 years ago. This indicates that some mammoths survived the extinction event 13,000 years ago which wiped out many large mammals across North America.