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Rattus rattus, commonly known as the black rat or house rat has been recognized as “one of the most invasive species worldwide”. These pesky rats have set their sights on the delicate system of lava tube caves in Hawaii.

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As if Hawaii didn’t already have enough to boast about – beautiful beaches, luscious green mountains, and lava – it now also wears the crown for the highest recorded levels of endemic coral reef fishes in the world.  In Hawaii, “endemic” fishes, or fishes that reside only in the Hawaiian Islands and…