Shh! Loud Sex Can Lead To Death, Says Science

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It seems like just yesterday we were discussing the perils of marathon sex (it was the day before yesterday), and now we learn that loud sex can also lead to death, death, death. For flies.

Scientists have thought for years that loud sex has been dangerous to some species, mainly species who were constantly being threatened by predators. It may actually be why men finish so quickly. But they hadn’t had the evidence until a recent study in Germany. The LA Times is reporting on the study that found that mating flies make noise that attracts bats that want to eat the flies, whether they are mid-coitus or not. Because bats are not polite.

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The researches from the Max Planck Institute for Ornithology in Seewiesen, Germany, filmed a colony of Natterer’s bats living near Marbrg with houseflies. The flies, who rarely fly at night, remain on the ceiling where the background echoes hide them from the bats, making it nearly impossibe for them to become discovered.

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But during loud fly sex, the bats were able to find — and eat — the flies.

To show that it was not simply the increased size of the copulating couple that attracted the bats, the researchers pinned flies in a copulating position to the ceiling. The bats ignored them. But when the team played the sounds of copulation through speakers, the bats attacked the speakers.

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You may be wondering what this has to do with you and your sex life — you aren’t a fly. This wisdom could come in handy in a situation where you and your sex partner are the hunted in some sort of strange, horrific plot and kill madness sort of thing. (I am looking at you, Katniss.) It’s also a reminder that our roommates, while they might not kill us for our loud sex, may want to. And they might return the favor with some loud sex of their own. And we don’t want that, now, do we?

[LA Times]

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