A clever fish has figured out that if it produces sounds in an oyster shell, the noises will carry over long distances, according to new research. The study, published in The Journal of Experimental Biology, is just the latest to show that fish are far from being silent. Many can produce sounds by vibrating their swimbladders and, like a fishy form of Morse Code, they can create different meanings based on the sounds.

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The transformer in submitter onecardshortof52's Logitech speakers was humming, but they couldn't be fixed without destroying the shell. So, after taking them apart, splicing some wires, replacing the power source, and giving them some stylish new resonance chambers (paper coffee cups), onecard now has a functioning set of desktop speakers.

Submitter Liam hooks up a 12-V amp and some classic stereo speakers.