And now clownfish, those popular splashes of color on coral reefs and aquariums and, of course, "Finding Nemo." ALEXANDER GOULD: (As Nemo) No. BROOKS: (As Marlin) How many stripes do I have? GOULD: ...

Dressing to look more grown-up is a teenage rite of passage – but humans aren’t the only ones who do it. Baby clownfish have been found to lose their additional white vertical stripe at a younger age ...