The human ability to speak evolved from talking fish, according to new research from Cornell University. In fact, LiveScience reports that speech skills in all vertebrates, including birds, dogs, and humans, can be traced back evolutionarily to the neural circuitry found in fish.
Many fish can still talk today, including the midshipman fish, whose males will emit grunts and hums to communicate with others. A video of that is available on the LiveScience website. Male midshipman fish will hum in order to attract other mates. “Female midshipman dig it,” LiveScience reports, “and they only approach a male's nest if he makes this call.”