It’s hard to imagine a tiny, 2-inch frog could cause so much harm. Beloved in its native Puerto Rico, the coqui frog has become a menace in Hawaii, where it suddenly appeared in the 1990s. With no natural predators, such as snakes, to keep their numbers under control, the frogs and their loud “ko-KEE” mating calls have multiplied exponentially causing headaches for homeowners.

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