Final answer:
The Stagecoach Pass petting zoo would have likely featured animals such as rabbits, goats, and horses that are typically found in petting zoos, with burros also being a possibility because of their historical significance. Exotic animals mentioned may not have been part of the interactive exhibit.
Step-by-step explanation:
The Stagecoach Pass petting zoo featured a variety of animals, including domestic and exotic species. It is not specified whether the Stagecoach Pass in the context of the question had a petting zoo, but traditionally petting zoos contain animals such as rabbits, goats, and horses. References to "sea cow, elephant, zebra, giraffe, deer, elk, hippopotamus, kangaroo, and monkey" suggest the presence of exotic animals typically not found in petting zoos, and so these may not have been featured at the Stagecoach Pass petting zoo or could pertain to displays rather than interactive exhibits.
Historical information suggests that burros (also known as donkeys) and cattle were integral parts of working Stagecoach Passes and could have been present for interactive educational purposes. Given the context of traditional roadside attractions in the United States, animals that were easy to care for and safe for public interaction, such as rabbits, goats, and horses, would have likely made up the majority of petting zoo inhabitants.