Female ducks can tell if a male’s sperm contains diseases

What if you could tell a potential mate ’s STD position just by looking at them ? That ’s the evolutionary vantage that ducks seem to have .

It turns out mallard ducks have a problem with the males passing severe bacteria on to females during the appendage of reproduction . The obvious reply ? Select for partners with antibacterial sperm . New enquiry showsthat not only do some Francis Drake have semen that can wipe out off Escherichia coli and Staphylococcus aureus , but this trait seems to be linked with how colorful their invoice are . It ’s an international indicator of sperm quality , and earmark for female person to pluck fellow that are less likely to give them STDs .

Is there a single thing about duck’s egg mat that isn’tmind – bendinglyterrifying ?

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