Cbeebies shared facts about clownfish (Picture: BBC) Another added: ‘The frustrating thing is, it IS interesting that some fish can change sex. I like kids being taught fascinating science facts.

Nemo's father - a character from the popular animated movie 'Finding Nemo' - should have turned into a female, say scientists who found that male clownfish change sex if their mating partner dies.

Thanks to the use of a specialized infrared camera, we're now able to witness a never-before-seen phase of clownfish development: the nighttime hatching of larva from their eggs.