San Francisco is poised to ban performances using bears, lions, elephants and other wild animals and join dozens of other places that have similar prohibitions.

The ordinance, which is expected to get final approval on Tuesday from the San Francisco Board of Supervisors, would apply to circuses, backyard birthday parties and filming of movies and television shows.

Wild or exotic animals also include seals, dolphins, zebras and raccoons.

Cats, dogs and other domesticated pets are exempt, as are animals used in educational programs. Reptiles smaller than 8 feet long are not considered wild animals.

Advocates and opponents agree that San Francisco would be the largest U.S. city to enact such a comprehensive prohibition.