Fact #572

Sea life that are known to change their gender include wrasses, which is a type of fish, and moray eels. Unlike clownfish, wrasses switch from female to male with the largest female switching to male and taking over a group of females.

Source: http://www.todayifoundout.com/index.php/2011/08/clownfish-are-all-born-male-a-dominant-male-will-turn-female-when-the-current-female-of-the-group-dies/