Mark Brown, Wired UK:
“Remarkably,” said Stratchclyde University’s James Windmill in a press release, “even though 99 percent of sound is lost when transferring from water to air, the song is so loud that a person walking along the bank can actually hear these tiny creatures singing from the bottom of the river.”
To make this colossal acoustic din, the male water boatman rubs his penis (or “genitalia appendage”) against the ridged surface of his abdomen, like a wooden spoon against a washboard. Size doesn’t matter for this tiny marine animal, though, as the whole area measures about 50 micrometers across — roughly the width of a human hair.
Admit it. You clicked this link because you saw the words “bug’s penis”.