07 Jan '12, 9pm

Naked mole rats have the world's ugliest, most sluggish sperm

Naked mole rats have the world's ugliest, most sluggish sperm

Naked mole rats are unique among mammals in that they live in an insect-like society where a single queen dominates and performs all the reproductive work. She chooses only one male at a time to breed with, and is capable of suppressing the reproductive drive of all the other males to encourage cooperation rather than competition. As a result, the one lucky male chosen as breeder can afford to have sperm that flaccidly lollygags its way to the egg.

Full article: http://www.mnn.com/earth-matters/animals/stories/naked-mo...

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