Phylogeny recapitulates potheads.
Apparently getting stoned affects the behavior of the smoker's sperm. The little guys start out really excited but then burn out before achieving their goals. Why does this sound familiar? Would it be a good ad campaign? Ah, I can't be bothered to figure it out, pass the bong.
"Jody Has Two Daddies" -- The literal remix.
Scientists are making egg cells now, raising the (eventual) possibility of one guy providing the genetic material to raise a crop of eggs, while the other guy provides the crop of sperm (no extra work necessary). Just add one surrogate mother and there you have it: Yet another fundamentalist nightmare, in cute infant "Adam and Steve" form.