Superfetation (also spelt Superfoetation, though some argue this is etymologically incorrect, see fetus) refers to the formation of a fetus while another fetus is already present in the uterus. It is common in some species of animals, but is extremely rare in humans. It can only occur where there are two uteri, or where the [menstrual cycle]? continues through pregnancy. |
Superfetation (also spelt Superfoetation, based on a false etymology - see fetus) refers to the formation of a fetus while another fetus is already present in the uterus. It is common in some species of animals, but is extremely rare in humans. It can only occur where there are two uteri, or where the [menstrual cycle]? continues through pregnancy. |
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