This week on Expedition Unknown, Josh and the team are bound for the far north as they head into the Arctic Circle in search for woolly mammoth DNA. The woolly mammoths went extinct about 4000 years ago, when the last isolated population on Wrangel island died out. Though mammoths disappeared from the mainland around 10,000 years ago, probably due to a combination of climate change and human hunting. Mammoths were about the same size as modern day African elephants, with males about 3 m at the shoulder and weighing in around six metric tons. They had thick fur made up...read more