Cleaner wrasse working on a dragon wrasse on a coral reef in Hawaii
The wrasses are a family, the Labridae, of marine fish, many of which are brightly coloured. The family is large and diverse, with over 600 species in 82 genera.
They are typically small fish, mostly less than 20 centimetres (7.9 in) long, although the largest, the Humphead wrasse, can measure up to 2.5 metres (8.2 ft). view more...