[LiteKeeper]

No they can’t...scientists have no clue how “evolution” led to two parents being required in most reproduction. Nor can they explain how two different creatures could “evolve” independently, and yet still be able to mate. It is still a mystery to them.

[allmendream]

They didn't evolve independently. That should be your first clue. Secondly two parent reproduction was favored by natural selection because due to the increased genetic diversity that results.

The things you think you know about what evolutionary biologists know, just aren't so.