"Yuri (voice-over): At four and a half months a human fetus has a reptiles tail – a remnant of our evolution. You can fight a lot of enemies and survive but if you fight your biology you always lose."
A fetus or foetus is the unborn offspring of a viviparous animal that develops from an embryo. Following the embryonic stage, the fetal stage of development takes place. Prenatal development is a continuum, with no clear defining feature distinguishing an embryo from a fetus. However, in general a fetus is characterized by the presence of all the major body organs, though they will not yet be full