What animal is overpopulated in Hawaii?

Feral cats have established populations on all eight of the main Hawaiian Islands and contribute to widespread ecological disruptions that threaten native Hawaiian wildlife. Feral cats are one of the most devastating predators of Hawai'i's unique wildlife.



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The biggest predators you have to worry about in Hawaii are sharks.

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Culex quinquefasciatus is found on all islands and is the most common nigh-biting mosquito in Hawaii. The immature stages of all mosquitoes occur in water; only the adult mosquito lives out of water. Up to 250 are laid singly or in clusters, depending on the species.

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