The Blue Groper fish have a unique way to control their population: they can change their sex!Bob Harcourt, Associate Professor Macquarie University: "The blue groper is a large fish, but the really sexy thing about...
https://www.neatorama.com/2009/07/14/bluey-the-transsexual-fish/
Bluey, the Transsexual Fish
search took 0.015 seconds