Bluestreak Cleaner Self-Toughness Check

[Mark Goode]

Just spotted this:

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.

phys.org

 

[Dburr1014]

Just spotted this:

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.

phys.org

Interesting.
But they can't do that in natural habitat.

 

[Mark Goode]

Interesting.
But they can't do that in natural habitat.

So there are clearly some advantages to living in a tank.