One day he went aboard a boat to cross the ocean. He ment they would renew their youth by changing their skin like serpents. So they would never die. The Creator heard this and became angry. And so mankind lost his immortality.
Next myth comes from the Admiralty Islands.
Once there was an old woman. While her two sons were fishing she went to bathe. She stripped off her wrinkled old skin and renewed to a young woman as she was long before. When her two sons came home they were astonished. The mother heard them talking and asked them what was going on.