Co-operation in nature often works as an exchange of goods or services between two different parties. Scientists have studied how certain fish on coral reef keep other species of fish clean. The ...

Female cleaner fish are sensitive to what their partners can and cannot see while working on client fish. This means they may have theory of mind, a concept built on awareness of other’s perspectives, ...

You’d be hard-pressed to find any fish daring enough to voluntarily enter a top predator’s mouth, but that’s precisely what a humble fish called the cleaner wrasse does. These fearless fish swim ...

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 ...

Which aquarium net is best? Keeping an aquarium is a relaxing and fun hobby, thanks to the tank’s gentle bubbling and the curious activities of tropical fish. However, removing fish and items from ...

It’s not easy for fish to clean themselves, without limbs or digits to scrub those hard-to-reach places. Fortunately for them, coral reefs come with cleaning stations. At particular sites, an itchy ...