Cleaner wrasse check their body size in mirror before deciding whether to fight, research demonstrates

Some fish check their size vs their opponent in the mirror before a fight

"Cleaner fish will be the first non-human animals to be shown to possess private self-awareness," the researchers said.

Tiny fish checks itself out in mirror before picking fights, scientists find

Bluestreak cleaner wrasse not only recognises its own reflection but may have internal awareness of its body, say Japanese researchers

Fish size themselves up in a mirror to decide if they can win a fight

Cleaner wrasse use their reflection to build a mental image of their body size, which they use to compare themselves to rivals before picking a fight

Tiny fish found to ‘check its body size in the mirror before getting into fights’

Cleaner wrasse have the ability to construct a mental image of their body after looking at themselves in the mirror.

Cleaner wrasse check their body size in mirror before deciding whether to fight, research demonstrates

An Osaka Metropolitan University-led team has demonstrated that bluestreak cleaner wrasse (Labroides dimidiatus) check their body size in a mirror before choosing whether to attack fish that are slightly larger or smaller than themselves.

Study: Fish With A Mirror Check Their Body Size Before Fights With Bigger Opponents

Researchers in Scientific Reports are claiming the first non-human instance of an animal possessing some mental states (e.g., mental body image, standards, intentions, goals), which are elements of private self-awareness.They show that Labroides dimidiatus (bluestreak cleaner wrasse) checked their body size in a mirror before choosing whether to attack fish that were slightly larger or smaller than themselves. The authors say the cleaner wrasse’…