...one of the first diplomats to hear the noise was tantalizingly close to the right answer. As
reported by ProPublica, he blamed cicadas (which are not crickets, but do also sing). "Cicadas don't sound like that," his neighbor reportedly said. "It's too mechanical-sounding."
But the Indies short-tailed cricket is no ordinary singing insect. It has the fastest pulse-repetition rate of any cricket in the Caribbean or North America. Have a listen. It sounds pretty mechanical!
The cricket story reminds me of a very similar saga: the Sausalito hum. Back in the 1980s, just across the bay from San Francisco, the people of Sausalito were kept awake by a loud, rumbling hum, which reverberated through the walls of their expensive houseboats. Some thought it was effluent being pumped from a sewage pipe. Others blamed a cable recently laid by an electric company. Yet others suspected Russian submarines.
But John McCosker from the California Academy of Sciences eventually showed that the hum was the love song of the male
plainfin midshipman—a type of toadfish. These fish attract females by vibrating their swim bladder, the same organ that keeps them afloat, to produce an extremely loud noise that sounds more like a foghorn than a fish. When many males sing en masse, the ruckus can be heard on land, in Sausalito,
Seattle,
Southampton, and everywhere else that toadfish are found.