Maui Ocean Center photo Growing up in Hawaii ... Their beaklike mouths are used to probe corals and reef crevices in search of small invertebrates and crustaceans, but are also used in cleaning ...

[See Photos of Head-Butting Fish ] "To us ... of observing head-butting — and this is no small feat given the distance from shore of the outer reefs," Muñozsaid. "At Wake Atoll, the outer ...

In coral reefs off the Caribbean island of Curaçao, the researchers set up tripods connected by a nylon line so that 3D models of dummy fish could be pulled past colonies of real damselfish.

Reef "beauty salons" staffed by tiny cleaner fish aren t just for parasite removal they may also shape the microbial life of ...