Short answers, pulled from the story.
The word wrasse originates from the Cornish language, derived from a lenited form of a word meaning an old woman or hag. This linguistic root has survived for centuries in the name of these vibrant marine creatures.
Fossil records of the wrasse family stretch back to the Early Eocene period in Monte Bolca, Italy. This timeline places the origin of the family during the Eocene period.
The wrasse family Labridae encompasses over 600 species across 81 genera. These species are divided into eight distinct subfamilies, making them one of the most diverse groups of marine life.
The humphead wrasse defies the norm of most wrasses measuring less than 30 centimeters in length. It grows to impressive sizes that challenge the perception of the family as merely small reef dwellers.
Many species of wrasses use large rocks or hard coral as anvils to smash open hard-shelled prey items. At least 21 species across eight genera have been documented exhibiting this behavior with invertebrate prey such as clams, sea urchins, and crabs.
The bluestreak cleaner wrasse Labroides dimidiatus is best known for its role in cleaning symbiosis with larger, often predatory fish. It grooms them and consumes ectoparasites, dead tissue, and scales, making parasite removal more important for predator survival than the short-term gain of eating the cleaner.