zoos are places of public accommodation. regardless of whether they are the recipient of federal financial assistance. see
ADA Home Page - ada.gov - Information and Technical Assistance on the Americans with Disabilities Act and
DisabilityInfo.gov: Disability related information and resources from the Federal Government
many zoos have deaf awareness day, like the Baltimore aquarium. Saturday May 30 at King's Dominion, they will have a Deaf awareness day, with most shows interrpeted.
faire-jous, ask if your local zoo can set up a day for deaf people to come. The zookeepers can give a tour, but the terps cannot interprete the animals' sounds.....