But now, incredibly, new research suggests that the cleaner wrasse—a tiny, tropical reef fish—can recognize itself too, making it the first fish to do so. Scientists have long used a mirror ...

Large numbers of multiple species of fish at the edge of a rock reef off San Benedicto Island in the Revillagigedos Archipelago. Credit: Allison & Carlos Estape Researchers encountered the new wrasse ...

Researchers at Osaka Metropolitan University in Japan have discovered that the 'cleaner' wrasse fish, Labroides dimidiatus, is able to recognise itself in a photo. The species is known to attack ...

The bluestreak cleaner wrasse (Labroides dimidiatus) — a tropical fish that nibbles dead skin and parasites from other fish — seems to recognize its reflection, but it was unclear whether it ...

A tiny species of fish checks itself out in the mirror before picking a fight, scientists have found. Researchers have discovered that the bluestreak cleaner wrasse – which is about the size of ...

Bluestreak cleaner wrasses are entrepreneurial fish. This tiny, shiny species sets up shop in coral reefs, where it eats parasites off of client fish, some of them big and hungry. It's a dangerous ...

Wrasse are among the largest fish families, including many that go ... For smaller wrasse, or larger prey, a convenient rock expands the range. Nevertheless, there is a price to pay for this ...

The bluestreak cleaner wrasse is just one of about 600 different species of wrasse. It's a little thing, about 3.9 inches (10 cm) long on average, with, well ... a blue streak down its side.