Shocking clownfish fact changes everything about Finding Nemo

Finding Nemo told the heartwarming tale of a father searching for his lost son. However, the biology of clownfish would never allow this plot point.

Clownfish have a unique reproductive system, living in groups of fish with only one dominant female.

The female picks the most aggressive male to mate with, and if the queen fish dies, the dominant male transitions back to female.

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