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nathan3
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[video=youtube;xlm3p6bRd34]http://www.youtube.com/watch?v=xlm3p6bRd34[/video]
Superfecundation is the fertilization of two or more ova from the same cycle by sperm from separate acts of sexual intercourse. The term superfecundation is derived from fecund, meaning the ability to produce offspring.
Heteropaternal superfecundation occurs when two different males father fraternal twins.
In common usage, the term superfecundation is often used instead of heteropaternal superfecundation. The terms are practically equivalent because, though it is speculated that superfecundation by the same father is a common occurrence, it can only be proven to have occurred when there are multiple fathers.
Superfecundation is the fertilization of two or more ova from the same cycle by sperm from separate acts of sexual intercourse. The term superfecundation is derived from fecund, meaning the ability to produce offspring.
Heteropaternal superfecundation occurs when two different males father fraternal twins.
In common usage, the term superfecundation is often used instead of heteropaternal superfecundation. The terms are practically equivalent because, though it is speculated that superfecundation by the same father is a common occurrence, it can only be proven to have occurred when there are multiple fathers.
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