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Female Humphead Wrasse

The endangered humphead wrasse (Cheilinus undulatus) is a species of wrasse mainly found on coral reefs in the Indo-Pacific region. It is also known as the Māori wrasse, Napoleon wrasse, Napoleon fish, Napoleonfish. The humphead wrasse is the largest living member of the family Labridae and one of the largest fish in the world—growing over six feet long. It is easily identifiable by its thick lips, prominent bump on its forehead, and two black lines behind its eyes. The coloring of Humphead Wrasses can range from a dull blue-green to brilliant shades of green or purplish-blue.

Humphead wrasses, like most wrasses, are protogynous hermaphrodites, meaning that they can function as members of both sexes over their reproductive lives and some of them will start as females. Later in life they may transition to males. Some of them live to be over 30 years old. They roam through coral reefs in search of hard shelled prey such as mollusks, starfish, or crustaceans.

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