During the 80s in Sausalito CA, some wealthy people decided to buy houseboats on the bay. And they were in for a surprise when in April a loud humming sound would start after sunset and continue all night. The sound has been described as a chorus of Kazoos, B-29 airplanes flying in formation, a didgeridoo, a drone of bees and the chanting of monks.

They started a noise committee to determine where the sound is coming from. They eventually discovered that it was a toad fish in the water during mating season.

PS The fish has bioluminescent properties.