The bluestreak cleaner wrasse can use a mirror to assess its own size and avoid territorial squabbles with much larger rivals, a Japanese team of researchers said Wednesday.
Found in rocky areas and coral reef in areas south of Chiba Prefecture, the bluestreak cleaner wrasse, which is a small fish measuring around 10 centimeters long, is already known to be a creature that can recognize itself in mirrors and photographs, like humans can.
The bluestreak cleaner wrasse, which eats parasites off of other fish, engages in fierce territorial battles.
With your current subscription plan you can comment on stories. However, before writing your first comment, please create a display name in the Profile section of your subscriber account page.