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Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely spiraled males.
Originally posted by Anjaba
reply to post by Republican08
I think that the female ducks are capable of controlling the shape of their vaginas. Like if they don't like the guy then bam, switch the shape up and block him, of if she does like him then match his shape and let him in.
Ducks are known to detain the record of penis size amongst vertebrates, compared to their own size: a specimen of Argentine blue-bill duck had a remarkable 42.5 cm (17 inches) long penis at a body length of 20 cm! (Could you imagine a 6 ft (1.8 m) tall man having a 13.3 ft (4 m) long penis?).Moreover, ducks' penises are very bizarre: beside a great variation a half-inch (1.2 cm) to 17 inches long, they are extremely variable in shape, from smooth to covered with spines, grooves and variably curled
Originally posted by Anjaba
Ducks are known to detain the record of penis size amongst vertebrates, compared to their own size: a specimen of Argentine blue-bill duck had a remarkable 42.5 cm (17 inches) long penis at a body length of 20 cm! (Could you imagine a 6 ft (1.8 m) tall man having a 13.3 ft (4 m) long penis?).Moreover, ducks' penises are very bizarre: beside a great variation a half-inch (1.2 cm) to 17 inches long, they are extremely variable in shape, from smooth to covered with spines, grooves and variably curled
Another Article
On 5 June 1995 an adult male mallard (Anas platyrhynchos) collided with the glass façade of the Natuurhistorisch Museum Rotterdam and died. Another drake mallard raped the corpse almost continuously for 75 minutes. Then the author disturbed the scene and secured the dead duck. Dissection showed that the rape-victim indeed was of the male sex.
Keywords: homosexuality, necrophilia, non-consensual copulation, mallard, Anas platyrhynchos