Zoe Leyland was born in Australia on April 11th 1984. As an embryo, she'd been frozen for 8 weeks before being successfully implanted into her mother's womb. Dr Alan Trounson was part of the team who pioneered the technology to freeze embryos, he's been speaking to Ashley Byrne.
Photo: In vitro fertilisation technician removing frozen embryos from storage. Credit: Science Photo Library
