What is a zoo animal vet called?

A zoological veterinarian is a vet that focuses on exotic and wild animals. For vets and non-vets alike, it is one of the most exciting types of veterinarian practice. It is also very competitive, with only a dozen or so opportunities to study zoological medicine offered each year, worldwide.  

Zoo veterinarians treat the injuries and illnesses of animals that live in zoos, as well as preventative medical care. They may use a variety of medical equipment, including surgical tools and imaging devices. Zoo veterinarians usually are employed by zoos, aquariums, museums, or research facilities.