Extracurriculars for pre vet?

Thank you for the advice! Right now, I want to major in zoology when I go to college. Not a ton of colleges have that, so maybe biochemistry.
I know that vet school is really competitive to get into so I assume that it looks better to go to a higher ranked school. Also, CSU is amazing for vet school, but it is not as good for undergrad. They do not give preference to students who went to Undergraduate there probably because they know it is the the most competitive school in the world. So I do not mind if I go to a college with or without a vet school.
But you are right. The most competitive colleges are super expensive!
I am currently working with a monkey sanctuary, and I am trying to join a few other animal organizations. I have an internship this summer. I am just seeing what else I can do.