Swiss army knife sex

The fossil also showed in breathtaking detail the positioning of the pair in flagrante delicto. While the finer points of the orientation of this particular duo may have been affected by the pressure of the sediment that caused their preservation, the finding underscores the unlikely seeming importance of sexual habits in evolution. Scientists care about the intricacies of how insects mate not out of a desire to create a bestial Kama Sutra, but for two reasons. The first is that we can use such aspects of sex as mating position and the shape of genitalia to reconstruct evolutionary history and see how species are related to one another. Evolution is all about reproduction. What happens at the business end of an animal is essential to whether eggs are fertilized and genes passed on, and nowhere is the variation in sex organs more breathtaking than in insects.
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The National: Fellatio, The Swiss Army Knife of Bat Sex? - The Column

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The National: Fellatio, The Swiss Army Knife of Bat Sex?

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Hard to believe, right? New research out of China shows Fruit Bats are one of the few mammalian species to engage in oral sex. Bat penises contain erectile tissue much like our own. While many of us might nod sagely at the need for longer sex, Tan suggests that for the bats, it could mean easier transport of sperm to the oviduct, or more secretions from the female that are conducive to fertilisation.
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