The midshipman fish hums to lure a female into its rocky nest (Footage: A Bass/M Marchaterre)
Grunting fish have helped scientists to date the origins of vocal sounds to about 400 million years ago.
Toadfish and midshipman fish use a variety of different sounds to attract mates and scare off rivals.
Now US researchers have found that the area of a fish's brain that drives vocalisation is extremely primitive.
Writing in the journal Science, they say it suggests that the ability to communicate through sound emerged very early in the evolution of vertebrates.
Andrew Bass from Cornell University, who is the lead author of the paper, said: "You'll hear frogs calling, birds singing and we hear this all the time - we are familiar with this.
"But I think it's fair to say that most people are unaware of the fact that many fish use sound for social communication."
A series of grunts scares off a male intruder (Footage: A Bass/M Marchaterre)
The closely related toadfish and midshipman fish are nocturnal, living along the north-west coast of the US and Canada.
Professor Bass said: "They make different kinds of sounds in different social contexts. Just as birds will use one call to attract a mate and another call to scare a rival off, the fish do exactly the same thing."
A deep hum lures females to a male's nest; a sharp grunt is used to defend territory.
The researchers looked at the noisy creatures' brains
To investigate the origins of vocalisation, the team looked at the area of the fish's brain that was responsible for controlling the pitch and duration of the calls, which is known as vocal patterning.
Professor Bass told BBC News: "We identified where this pattern generator developed in the brains of these fishes, and then we looked at where it was in frogs, birds and primates."
The team discovered that the neural networks for vocalization were all situated in the same region.
"We stood back and said: 'Oh my god, this is all in the same place'.
"It was astonishing how similar it was."
You could see that was a very ancient part of the nervous system shared by all vertebrates
Andrew Bass, Cornell University
The team compared this information with the evolutionary "family tree" for vertebrates. Because the evolution of the fish can be traced back further than that of amphibians, birds and primates, the team was able to deduce when the ability to vocalise came about.
Professor Bass said: "You could see that was a very ancient part of the nervous system shared by all vertebrates.
"We came to the conclusion that it must have evolved early in time before these different groups emerged from the evolutionary family tree - around the time when bony fishes evolved about 400 million years ago."
The team is now looking at genes involved in sound production.
Professor Bass said: "Maybe then we will find even more evidence for commonality. That's an exciting prospect."
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