Asynchronous embryonic germ cell development leads to a heterogeneity of postnatal ovarian follicle activation and may influence the timing of puberty onset in mice. - Dai, Yanli; Bo, Yingnan; Wang, Peike; Xu, Xueqiang; Singh, Meenakshi; Jia, Longzhong; Zhang, Shuo; Niu, Shudong; Cheng, Kaixin; Liang, Jing; Mu, Lu; Geng, Kaiying; et al. (BMC Biology, 2022)