The Wall Street Journal
The Wall Street Journal
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Females Stop Sneaky Males From Fertilizing Their Eggs

Posted

August 16, 2016

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5,122

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The ability to choose a mate for egg fertilisation was thought to be limited to species with internal fertilization. But new research on the ocellated wrasse suggests that the female can influence which sperm fertilizes her eggs even when they are spawned externally and stop "sneaky male" freeloaders. Photo: Suzanne Alonzo

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