Wednesday, April 25, 2012

Bluespine Unicornfish, Naso unicornis

Bluespine Unicornfish or Kala (Hawaiian), Naso unicornis, Waikiki, Hawaii. These huge, gentle fish are the cows of the sea, spending their days grazing on algae that would otherwise clog the coral reef and kill delicate corals. When threatened, they extend those large, knife-like spines on their tail, warding off would be predators.

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