A new era for human fertility research

In 2004, Jon Tilly, pro­fessor and chair of the Depart­ment of Biology, over­turned the par­a­digm that female mam­mals do not pro­duce new egg cells after birth. His dis­covery has opened the flood­gates for new clin­ical approaches to combat infer­tility and per­haps even stave off menopause.