Fertility and early embryonic development have been investigated in rats and embryo-fetal development has been investigated in rats and rabbits.
研究大鼠的生殖能力和早期的胚胎发育以及大鼠和兔子的胚胎-胎仔发育。
2
Dr Shah could not find them earlier in development either, such as just after the fetal testes first started putting out testosterone in a 13-day-old embryo.