I can't see the dailymotion clip but it sounds cool.
I suppose, theoretically, a single female could repopulate the human race (at least I gather that scientists say we have a common ancestor). Also, some animals can change sex, e.g. the Wikipedia article on sex change says
"A school of clownfish is always built into a hierarchy with a female fish at the top. When she dies, the most dominant male changes sex and takes her place."
It ain't gonna happen with humans, though, sadly, not without GRS, anyway. Maybe someday, we will all have nanobots that allow us to choose our gender and rebuild as well as repair ourselves.