Finding Nemo is among one of Disney’s most popular films, but the heartwarming tale of Nemo, Marlin and Dory has a dark secret that producers decided not to show10:28, 30 May 2025Updated 10:28, 30 May 2025Finding Nemo has a hidden secret.The beloved 2003 Disney film follows little Nemo who gets separated from his father Marlin after his mother dies.However, if Disney had told a scientifically correct story then the film would have been very, very different. Research presented by the University of Exeter shows that male clownfish actually transform into females to protect their children.After Nemo’s mum gets eaten by a barrcuda, Marlin would have taken her place and metamorphosed into a female.Nemo would have also developed mature gonads, become his own father, mated with the now-female Marlin and raised incestuous babies together.Finding Nemo would have ended very differently(Image: More