A bright-eye damselfish guards its territory, which includes this red pencil urchin, against intruders.
Bright-eye damselfish and red pencil urchin
Graham's Island
Life on the Big Island of Hawaii
A bright-eye damselfish guards its territory, which includes this red pencil urchin, against intruders.
Graham's Island 
What an interesting combination!
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Thanks. The damselfish zip around like they’ve drunk a lot of coffee!
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