Indian Brown Mongoose, the only place you will find them in the United States is in Hawaii.

So the mongooses were brought to Hawaii and released into the fields to kill the rats. However, there was one small problem. Rats are nocturnal animals, meaning they’re only awake at night. Mongooses are only awake during the day. So the two never came in contact with each other.
Instead of ridding the cane fields of rats, the mongoose began destroying some of Hawaii’s most native species and fauna.
The United States reports that in the Hawaiian Islands and Puerto Rico, the mongoose creates an estimated $50 million in damages.