“Dangerous animal” means those animals listed in Section 717F.1, paragraph 5a of the Code of Iowa. In addition, the following animals are also considered dangerous animals:
1. Badgers, wolverines, weasels and skunks;
2. Raccoons;
3. Scorpions;
4. Piranhas and sharks;
5. Any domesticated animal that has proven itself to be a dangerous or vicious animal by a history of attacking or biting human beings or other animals;
6. Any crossbreed of such animals which have similar characteristics to the animals specified above.