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Superfetation

Known as: Superfetations 
The FERTILIZATION of an OVUM that takes place when a FETUS is already present in the UTERUS. Superfetation results in an unusual PREGNANCY with… Expand
National Institutes of Health

Papers overview

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Highly Cited
2014
Highly Cited
2014
The evolution of the placenta from a non-placental ancestor causes a shift of maternal investment from pre- to post-fertilization… Expand
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2011
2011
Members of Poeciliidae are used as model organisms for experimental studies on natural and sexual selection, and comparative… Expand
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2010
2010
Poeciliids are one of the most intensively studied groups within Cyprinodontiformes owing to their use as model organisms for… Expand
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2007
2007
Superfetation, the ability of females to simultaneously carry more than one brood at different developmental stages, is an… Expand
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2006
2006
The European badger Meles meles is thought to mate throughout the year with two mating peaks occurring in late winter/spring and… Expand
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2004
2004
The frequency of litter overlap, the simultaneous presence of two litters at different stages of development within a single… Expand
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2003
2003
Heterandria formosa Agassiz, exhibits internal fertilization, internal brooding of embryos, sperm storage and an extreme level of… Expand
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1992
1992
We report the case of a dichorionic and diamniotic pregnancy with the unique feature of an early ultrasound diagnosis of a 4-week… Expand
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1990
1990
This observation reports a case of human superfetation. Fertilizable oocytes and embryos were obtained after ovarian stimulation… Expand
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1976
1976
Peripheral plasma progesterone levels were studied in pregnant hares. A rise occurred at the beginning of pregnancy, followed by… Expand
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