A cleaner wrass with an island jack customer. Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. Not all fish ...

Do you know that the fish here in Hawai‘i go to the dentist on a regular basis to have their teeth cleaned? From large sharks to young yellow tangs, they all get free dental work, but they must go to ...

Controversial new research shows that a tiny, unsuspecting species of fish can pass a test that’s widely considered the gold standard of intelligence. As far as we can tell, only a few of the most ...

The bluestreak cleaner wrasse exhibits signs of human-level reasoning and judgment A FISH species examines itself in the mirror before deciding whether to fight in what scientists call the first ...

Mirror tests are used to assess an animal’s response to its reflection. Explore how fish react and learn if they possess self-awareness. In February, a team of researchers published a paper showing ...

Before deciding whether or not to fight another fish, cleaner wrasse check their own reflection in a mirror and size themselves up. First, Taiga Kobayashi at Osaka Metropolitan University in Japan and ...

Labroides dimidiatus feeding off a plexiglas plate in the lab at the Lizard Island Research Station. Photo courtesy of Simon Gingins On the surface, cleaner wrasses seem like real nice fish. They set ...

Jess Thomson is a Newsweek Science Reporter based in London UK. Her focus is reporting on science, technology and healthcare. She has covered weird animal behavior, space news and the impacts of ...

A little fish just passed a classic scientific test of self-awareness by recognizing itself in a mirror, scientists have announced. The cleaner wrasse fish, which measures around 10cm in length, was ...

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 ...

This is a preview. Log in through your library . Abstract Recent studies on cleaning behaviour suggest that there are conflicts between cleaners and their clients over what cleaners eat. The diet of ...