When it comes to the animal kingdom, anything goes, it seems. From sounds heard miles away to spontaneous sex changes, these little-known facts were probably not discussed in that high school biology class you took.
When a female clownfish is expecting, she doesn't have to worry about coming up with names for the girls. There won't be any. All clownfish are born male. All the Nemos are Nemos. No Nemettes. Some will later make the choice to become female but they have to make the transition on their own. The basic clownfish major medical policy doesn't cover gender reassignment.