A new study using high-speed video shows for the first time that the reef fish Zanclus cornutus (Moorish idol) and the related surgeonfish can move their jawbones sideways as well as up and down. This ...

Reef "beauty salons" staffed by tiny cleaner fish aren t just for parasite removal they may also shape the microbial life of the entire ecosystem. A fascinating new study shows these bustling fish ...

Why are there so many species of coral reef fish? According to a new study, it's because about 50 million years ago, some fish figured out how to bite food from hard surfaces. Evolution doesn't ...

Where do you go when you’re a fish and you need a skincare treatment? Coral reefs contain natural “beauty salons,” lively social hubs of activity where fish “clients” swim up and wait to be serviced ...

Do fish bay at the moon? The answer to that question may also point to a way to protect the ocean's damaged coral reefs. That's a vital goal for the approximately one billion people – most of them in ...

For the past 10 years, marine biologist and conservationist Stan Shea has been leading a citizen-science program called the 114°E Hong Kong Reef Fish Survey to compile data on local reef fish species ...

Some reef fish have the unexpected ability to move their jaws from side to side, biologists have discovered. This ability -- which is rare among vertebrate animals -- allows these fish to feed rapidly ...

A cleaner goby cleans a grouper in a Caribbean coral reef. These little fish clean much bigger fish of parasites and bacteria. Where do you go when you’re a fish and you need a skincare treatment?