Ovary transplant between twins
A US woman has had part of an ovary surgically transplanted into her body, after it was donated by her identical twin sister. Stephanie Yarber, aged 24, underwent premature menopause at the age of 13 - her ovaries stopped functioning and she became infertile. She and her husband have since tried...
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Do parthenogenetic mice spell the end of men?
by Dr Jess Buxton
Does the birth of the world's first 'parthenogenetic' mouse, created using eggs from two female mice, really mean that men will soon be redundant? Well, no - if anything, it confirms that for mammals, sexual reproduction is the only way to make babies, thanks to a phenomenon known as imprinting. Last...