Humphead Wrasse

Photograph by Agus Prasetya, My Shot

Large lips and a forehead hump are hallmarks of the reef-dwelling humphead wrasse, popular with divers and fishermen across much of the Indo-Pacific. Incredibly, some humphead wrasses are born as females but undergo sex changes around age nine and end their lives as males. These big (420-pound/190-kilogram) fish live long lives, more than 30 years, and probably never occurred in great densities.