My girls are 6 years old and they know that it takes a women's egg and a mans sperm and that the man must put the sperm inside the woman to make the woman's egg turn into a baby (they just havent asked how the man puts the sperm inside and I haven't offered that either). They have also read non fiction titles about animals breeding on the farm and they understand the rams must be put into the paddock with the ewes every year so that they can get them pregnant but once again they have no asked exactly how the rams sperm is put together with the ewes egg and I haven't offered.
