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Posted

When all else fails, play dead...

https://www.theguardian.com/science/2023/oct/11/female-frogs-fake-death-unwanted-advances-study

When it comes to avoiding unwanted male attention, researchers have found some frogs take drastic action: they appear to feign death.

Researchers say the findings shed new light on the European common frog, suggesting females do not simply put up with the male scramble for mates – a situation in which several males can end up clinging to a female, sometimes fatally.

 

“It was previously thought that females were unable to choose or defend themselves against this male coercion,” said Dr Carolin Dittrich, the first author of the study from the Natural History Museum of Berlin...

Posted

Male ducks have clockwise corkscrew-like penises. When a female duck is not interested in the male's advances she tightens up her anti-clockwise corkscrew-like vagina to prevent the male from achieving his full (amazingly long) erection. Mother nature certainly has a sense of humor. 

Quote

Ducks' bizarre genitalia is a result of a sexual arms race. Forced mating is common among ducks, so while males' long, flexible penises increase their chances of successfully fertilising a female, the females' anticlockwise vaginas give them a level of control.

"Those complex structures prevent full eversion of the penis of unwanted males, so their sperm ends up closer to the cloacal entrance where the females can get rid of it more easily." 

https://www.sciencefocus.com/nature/duck-penis-corkscrew

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