A shrimp scrap drifted down the face of a mirror, and a small reef fish tracked it like it was watching a slow-motion experiment. The fish, a blue-streak cleaner wrasse, had carried the shrimp upward, ...

Research shows that even fish farmers have doubts as to whether using cleaner fish is an effective delousing method. "Fish farmers tell us that they want a ban on the use of certain species. They're ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Before squaring up for a fight, some fish check themselves out in the ...

Some of the reef fish that make their living by nibbling parasites off other fish may be luring clients into scams by offering free massages. Widespread fish called cleaner wrasses (Labroides ...

Charlie has an undergraduate degree in Forensic Psychology and writes on topics from zoology and psychology to herpetology.View full profile Charlie has an undergraduate degree in Forensic Psychology ...

Sea lice attached to the skin of a wild salmon. Salmon farms have been plagued by parasitic sea lice (Lepeophtheirus salmonis) since they were first established in Norway in the 1960s. The small ...