Lif and Lifthrasir
After the final, terrible battle at Ragnarok the entire cosmos will be destroyed. The only humans who will survive this destruction are Lif ("life") and Liftrasir ("eager for life") because they hid themselves in Hodmimir's Forest, the forest that the flaming sword of the fire-giant Surt cannot destroy. There they sleep through the destruction of the earth and when they awaken, they will find the earth is green and verdant again. Lif and Liftrasir will become the progenitors of an new race of humans, and their descendants will inhabit this world.