Skip to content. | Skip to navigation

Personal tools
Log in
You are here: Home Blog Go Team! Fishes demonstrate complex teamwork

Go Team! Fishes demonstrate complex teamwork

By Leonard Ho - Posted Sep 29, 2015 09:00 AM
We have no idea why rabbitfish are all of a sudden the darlings of the research world, but another recently published study confirms that these reef fish demonstrate remarkable cooperation with their buddies.

Photographic evidence of two rabbitfishes working together as a team already exists, but this fascinating behavior is only now being extensively researched and appreciated.  A new open-access study published in Nature shows in great detail the marvelous working partnership between pairs of rabbitfish.  And as another recent study shows, it's not always about sex

From the ARC Centre of Excellence for Coral Reef Studies:

I’ve got your back – Fishes really do look after their mates!


When it comes to helping each other out, it turns out that some fish are better at it than previously thought.

New research from the ARC Centre of Excellence for Coral Reef Studies at James Cook University has found that pairs of rabbitfishes will cooperate and support each other while feeding.

While such behaviour has been documented for highly social birds and mammals, it has previously been believed to be impossible for fishes.

“We found that rabbitfish pairs coordinate their vigilance activity quite strictly, thereby providing safety for their foraging partner,” says Dr Simon Brandl from the ARC Centre of Excellence for Coral Reef Studies.

“In other words, one partner stays ‘on guard’ while the other feeds – these fishes literally watch each others’ back,” Dr Brandl says.


The foraging individual (in the head-down position) feeds in cracks and crevices in the substratum, while the vigilant individual is positioned in the water column with its head up. Note the obstructions to the visual field of the forager, suggesting high vulnerability to predation and the unobstructed field of perception of the vigilant fish. (a) Siganus corallinus, (b) S. vulpinus, (c) S. doliatus, (d) S. puellus. Photographs taken and owned by Jordan M. Casey, who gives permission for their publication under an Open Access license.

“This behaviour is so far unique among fishes and appears to be based on reciprocal cooperation between pair members.”

Reciprocal cooperation, which requires an investment in a partner, which is later reciprocated, is assumed to require complex cognitive and social skills. Skills that fishes have been deemed not to have.

Yet, Dr Brandl says their research shows clear coordination and presents intriguing evidence for reciprocal cooperation between the rabbitfish pairs.

“There has been a long standing debate about whether reciprocal cooperation can exit in animals that lack the highly developed cognitive and social skills found in humans and a few species of birds and primates.” Dr Brandl says.

“By showing that fishes, which are commonly considered to be cold, unsocial, and unintelligent, are capable of negotiating reciprocal cooperative systems, we provide evidence that cooperation may not be as exclusive as previously assumed.”

Co-author, Prof. Bellwood, also from the Centre of Excellence for Coral Reef Studies, says that our perception of fishes as cold scaly automans is slowly changing.

“Our findings should further ignite efforts to understand fishes as highly developed organisms with complex social behaviours,” he says.

“This may also require a shift in how we study and ethically treat fishes.”

Author: Leonard Ho
Location: Southern California

I'm a passionate aquarist of over 30 years, a coral reef lover, and the blog editor for Advanced Aquarist. While aquarium gadgets interest me, it's really livestock (especially fish), artistry of aquariums, and "method behind the madness" processes that captivate my attention.


Document Actions
Filed under:
blog comments powered by Disqus


Contribute to our blogs!

Do you have news or discussion topics you want to see blogged?  Let us know!