EUTHERIA, PLACENTAL MAMMALS. “Placental mammals all bear live young, which are nourished before birth in the mother’s uterus through a specialized embryonic organ attached to the uterus wall, the placenta.”
https://lnkd.in/e3Zwz2F
EUTHERIA, PLACENTAL MAMMALS. “Placental mammals all bear live young, which are nourished before birth in the mother’s uterus through a specialized embryonic organ attached to the uterus wall, the placenta.”
https://lnkd.in/e3Zwz2F