| The topmost photo at right is of an ovary of the species Poeciliopsis presidionis, which has superfetation and extensive maternal provisioning. |
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| When does are bred on multiple heat cycles, it may appear that superfetation has occurred due to fetal sizes and maturity differences. |
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| Superfetation is more rare than superfecundation. Only a couple of cases have been described. These superfetation cases were both homopateral. |
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| We emphasize that all the females that we dissected contained a single brood of developing embryos, indicating the lack of superfetation in this species. |
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| So when I told him of superfetation, he looked at me like I was crazy. |
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