Mary had a little lamb, it's fleece was slightly grey.
It didn't have a father just some borrowed DNA.
It sort of had a mother though the ovum was on loan,
It was not so much a lambkin as a little lambie clone.

And soon it had a fellow clone, and soon it had some more,
They followed her to school one day all cramming through the door.
It made the children laugh and play, the teacher found it droll.
There were far too many little lambs for Mary to control.

No other could control the sheep, their process didn't vary.
So the scientists resolved it all by simply cloning Mary!
But now they feel quite sheepish now those scientists unwary.
One problem solved but what to do with Mary, Mary, Mary......