Battle of the sexes II

In the earlier post: Battle of the sexes I wrote about the whiptail lizards which don't have any male in their species. This weekend the same titled programme in Animal Planet telecasted about some fishes which are all born females and when they are all grown up the largest fish will change its sex and fertilize the eggs laid by the other females. I didnt get the name of that species but when I searched google I found out that it is very common in fishes to change sexes. Fishes are so cool.

Link:
Queensland Grouper