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Together As One SL8072.JPG
Vivid yellow caudal fins establish a visual signature that each plankton feeding fusilier can readily identify that they are in the 'right school'. This easy reference is also aided in that each fish possesses sensory organs that enable them to maintain space to move as one. This 'single body' behaviour is confusing from a predator's perspective as each snack-sized individual may be seen as a large, single daunting target.