It's two Celsius degrees lower than the body core temperature. Now the reason for that is because the enzymes involved in producing the sperm cells within our testes function effectively and efficiently at a slightly lower temperature. So that's exactly why the Scrotum functions to maintain a slightly lower temperature than our body core temperature. Now, once the sperm cells are actually formed in the sand monopoly's tubules of the testes those sperm cells travel into a highly convoluted tubule section found next to our testes known as the epididymis. And what the epididymis does is it stores those sperm cells until ejaculation actually takes place for example during sexual intercourse. And what the epidymus also does is it helps those sperm cells actually mature into mature sperm cells.