That, ladies and gentlemen, is a duck penis. Science blogger Ed Yong has a great article up today about these freaky, corkscrew behemoths and the equally freaky, labyrinthine duck vaginas. A researcher from Yale has been studying both, and thinks these rather baroque naughty bits evolved in competition with one another, as female ducks tried to evade rape (or, rather, impregnation by a rapist) and male ducks tried to get around those barriers.
The shape of the female duck's vagina is a physical barrier that prevents the male from launching forth his ballistic penis to its fullest extent. It won't stop a drake from ejaculating (and those in Brennan's trials always did), but it does limit how far the semen is deposited along the vaginal tract. Not all males are hit equally hard by these defences. Those that the female actually wants to mate with have an easier time. If she's into a male, she strikes a pose that signals her receptiveness, keeping her body level and lifting her tail feathers high. She repeatedly contracts the walls of her genital tract, relaxing them for long enough for favoured suitors to achieve full penetration.
Males who try to force themselves upon her receive no such help and have to cope with vigorous struggling. The female may not be able to resist such advances, but her convoluted vagina gives her ultimate control over where the sperm of her current partner ends up. The fact that only 3% of duck offspring are born of forced matings suggests that females are indeed winning this battle of the sexes.
With so many costumes adorning this election season, you might think the Halloween get-ups are overkill. Think again, because David Ng and B.R. Cohen are here to present the official universal survey about your candy favorites for the 2016 hierarchical delineation of candy virtue.
University of Zurich researchers used transcranial magnetic stimulation, a noninvasive method of inhibiting activity in parts of the brain, to “turn off” people’s ability to control their impulses. They focused on the temporoparietal junction, an area of the brain thought to play an important role in moral decisions, empathy, and other social interactions. They hope […]
Are you jonesing for a dose of optimism and possibility? In the mood to contemplate the cosmos? Want to experience a musical message for extraterrestrials the way it was meant to be played? The Voyager Golden Record: 40th Anniversary Edition, a project I launched with Timothy Daly and Lawrence Azerrad, is a lavish vinyl box […]
Geek Fuel is a subscription delivery service that caters to those of us that love comics, gaming, and general geek culture. Every month, Geek Fuel will assemble a box of goodies with a value of $50 or over. The specific items are a mystery, but you’ll always get an exclusive t-shirt not found anywhere else, a full […]
If you like to DIY and you like helicopters, you’re going to really love the Flexbot Hexacopter Kit. This copter blows traditional models out of the water: it includes everything you need to actually build your own hexacopter, and then pilot it like a pro, too.The construction is complicated enough to give you a challenge, […]
This week’s top deals from the Boing Boing Store range from lobster to wine to desk organization. 1. Get Maine Lobster (50% Off)With these discounted packages from Get Maine Lobster, you can experience the sweet, fresh flavor of world-renowned Maine lobster right at your own dinner table. There are four options to choose from, each at […]