Fetus
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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 cont
Fourteen phases of elephant development before birth
Fetal stage of a porpoise
A human fetus, attached to placenta, at three months gestational age
3D ultrasound of 80-millimetre (3 in) fetus (about 3+1⁄2 months gestational age)
Prenatal development
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Prenatal development involves the development of the embryo and of the fetus during a viviparous animal's gestation. Prenatal development starts with fertilization, in the germinal stage of embryonic
Fetus
…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…
An obstetric ultrasound monitor displaying a detailed sagittal profile view of a human fetus at 20 weeks and 5 days of gestational age.
A sperm cell fertilizing an egg cell