Читать книгу The Complete Parenting Collection - Steve Biddulph, Steve Biddulph - Страница 35

Janine is pregnant – seven weeks pregnant – and very excited. She doesn’t know it yet, but her baby is going to be a boy. We say ‘going to be’ because a foetus doesn’t start that way. It may surprise you to know that all young creatures start life being female. Boys are mutated girls! The Y chromosome that makes a baby into a boy is an ‘add-on’ chromosome which starts to act in the womb – to give a boy the extra bits he needs to be a boy and to stop other bits growing. A male is a female with optional extras. That’s why everyone has nipples, though not everyone needs them.