The internship interview was mostly speaking about experience with animal care and about what qualities you possess that would contribute to the entire team based on whatever department you are applying for.
I applied online. I interviewed at Houston Zoo (Houston, TX) in Mar 2019
Interview
I was contacted a couple months after the application process, and given a specific time to meet behind the scenes at the zoo. My entry for the day was free with a interview pass at guest services. Professional but friendly interview conducted by three zookeepers within the department. They did a good job of making me feel comfortable while also being straightforward.