Yeah, and they are going to take their pretty, young secretaries with them instead of their wives too ...
Hahahaha - at least the pretty young things will be breedable eh? So the earth will be repopulated by babies to-be-called "Doomsday Vaulters" instead of 'Born-Free's" - they'll all be vegetarian by the sound of it. So all those sci-fi movies aren't just imaginative stories after all, but have given us a glimpse into our seemingly morbid future ... better eat what I can now I reckon.
Just to add well, uhhh ... some spice to the seed in the vault story. I reckon that Noah's Ark was a huge spaceship that collects/ed the DNA of each animal/plant/mineral/blah blah when the time is right. Discovery Planet does a good job of explaining it and they show unique close-up satellite picts of the ship which now lies in the Himalayas. No wonder the area is considered sacred by many. Its where life on earth was re-born at some point ...