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Superfetation. Superfetation (also spelled superfoetation – see fetus) is the simultaneous occurrence of more than one stage of developing offspring in the same animal. [ 1][ 2][ 3] In mammals, it manifests as the formation of an embryo from a subsequent menstrual cycle, while another embryo or fetus is already present in the uterus.
Superfecundation is the fertilization of two or more ova from the same cycle by sperm from separate acts of sexual intercourse, which can lead to twin babies from two separate biological fathers. [ 1][ 2] The term superfecundation is derived from fecund, meaning able to produce offspring. Homopaternal superfecundation is fertilization of two ...
Teen Mom 2 alum Kailyn Lowry is pregnant with twins — and she thinks she might be having two girls. “I went to a new nail place today and I’m just sitting there talking to the girl next to ...
Twin anemia-polycythemia sequence ( TAPS) is a chronic type of unbalanced fetal transfusion in monochorionic twins that results in polycythemia in the TAPS recipient and anemia in the TAPS donor due to tiny placental anastomoses. [1] Post-laser TAPS and spontaneous TAPS are the two forms of TAPS. Unlike twin-to-twin transfusion syndrome, which ...
Teen Mom 2 alum Kailyn Lowry’s brood of boys just keeps growing. “They’re boys!” Lowry, 31, excitedly announced in an Instagram video on Monday, November 6, revealing the sex of the twins ...
The pregnancy was confirmed via ultrasound on Aug. 11. On Aug. 14, Ying Ying exhibited signs of active labor such as increased activity and irritability. Her water broke around 10 p.m. that same day.
Specialty. Obstetrics and gynaecology. A vanishing twin, also known as twin resorption, is a fetus in a multigestation pregnancy that dies in utero and is then partially or completely reabsorbed. [ 1][ 2] In some instances, the dead twin is compressed into a flattened, parchment-like state known as fetus papyraceus. [ 3]
Deaths. 230,600 (2016) [ 12 ] Pregnancy is the time during which one or more offspring develops ( gestates) inside a woman 's uterus (womb). [ 4 ][ 13 ] A multiple pregnancy involves more than one offspring, such as with twins. [ 14 ]
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