A man died and went to Heaven. There were thousands of other people there. They were all naked and all looked as they did at the age of 21. He looked around to see if there was anyone he recognised. He saw a couple and he knew immediately that they were Adam and Eve.
How did he know?
God could have thought about giving Adam and Eve belly buttons and made them with belly buttons, so all man could look the same... just sayin... thats all