What is the primary difference between supercundation and fetation?

Supercundation and fetation refer to different aspects of reproduction. Supercundation is the situation where a female is fertilized by sperm from two or more different matings, leading to the possibility of multiple paternities for the offspring. In contrast, fetation pertains specifically to the period of development of the embryo or fetus within the womb after fertilization has successfully occurred.

The primary differences encompass various factors:

• The number of cycles can influence the timing of conception. Females may ovulate multiple times or have cycles that allow for different coital acts leading to supercundation.

• The number of eggs involved can impact fertilization outcomes, especially if there is overlapping timing of ovulation in cases of supercundation.

• The number of coital acts plays a crucial role since supercundation requires multiple instances of mating with different males within the fertile window, while fetation is independent of this fact once fertilization has taken place.

Hence, all the aspects of cycles, eggs, and coital acts uniquely distinguish supercundation from fetation, making "All of the above" the most comprehensive and accurate choice.