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Hawaii News | Ocean Watch

Some fish enjoy the perks of a committed relationship

  • COURTESY RUSSELL GILBERT

    Hawaii divers have plenty of opportunities to see synchronized swimming butterflyfish: Of the 25 species of the fish in isle waters, at least a dozen are known to live in pairs.

Last week I watched two fourspot butterflyfish glide around a coral head so close together they were almost touching. Was this a male and female? I wondered. Whenever I’ve seen two butterflyfish together, I’ve always assumed they were male and female, but to what end? Read more

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