This page has been archived and is no longer updated. Published online 23 December Nature doi Matt Kaplan. Unwanted sex is an unpleasant fact of life for many female ducks. After carefully selecting a mate, developing a relationship and breeding, a female must face groups of males that did not find mates and want nothing more than a quick fling. Now a team led by Patricia Brennan, an evolutionary biologist at Yale University in New Haven, Connecticut, has described the morphology of the duck penis and found how the physiology and behaviour of female ducks can help to prevent unwanted sperm from being deposited far inside the oviduct.
The horrible thing you never knew about ducks
Men Behaving Badly: A Lesson from Duck Sex? - DNA Science
Duck sex is perhaps one of the most horrific events of the animal kingdom, involving penises with spines, explosive erections, and so much more. Measuring at Duck penises grow at the beginning of the reproductive season, and shrinks back down towards the end of the season. After a male duck mounts the female, the erect duck penis explodes into the female reproductive tract, spiralling out like a missile.
Why You Don’t Want to Do It With a Duck
Last year, I was surprised to find my female mandarin duck was turning into a male. Even as a zoology graduate and someone who has kept birds in an aviary since I was 10 years old, I had absolutely no idea this could happen, so I started investigating, and it turns out that the way birds express their sex is a fiendishly complex affair. They have been kept in captivity in the UK for decades after bird keepers became enamoured by the male's incredible breeding plumage. This plumage is a secondary sexual characteristic of the males, and is dependent on the time of year, with males moulting out of a female-like dull brown colouration in the Autumn.
In recent weeks, with eclectic examples of prominent human males behaving badly dominating the news, I think of the wider biological lens. Were the media moguls who forced parts of their anatomy into their female employees, the beloved TV star drugging and assaulting dozens of women, and the privileged schoolboys allegedly groping girls at long-ago parties just acting as biology dictates? Millon, Han Yan M.