i'm not judging or anything here, just curious. isn't it just a very specific voyeurism fetish and not really "zoo" thing if all you want is to watch/listen?
Not precisely, according to at least one researcher. In the excerpt from a study posted on this site, “zoophile voyeurism” (or microscopic zoophilia) is itself a form of zoophilia, as listed below:
Massen (1994, p. 57) proposed that there were nine basic forms of zoophilia, and added that often several of these forms occur in combination:
1) incidental experience and latent zoophilia,
2) zoophile voyeurism (also called mixoscopic zoophilia),
3) frottage (Massen 1994 described this as physical contact as source of pleasure),
4) the animal as a tool for masturbatory activities,
5) the animal as a surrogate object for a behavioral fetishism (such assadomasochistic practices, sexual murder, etc.),
6) the animal as fetish (fixation on one specific kind, breed, or individual),
7) physical contact and affection,
8) the animal as a surrogate for a human sex partner, and
9) the animal as deliberately and voluntarily chosen sex partner.This list is not exhaustive in its description of types and motivations,and especially zoophilia and zoo sexuality need to be investigated further.
Link to the study:
https://www.zoovilleforum.net/resources/new-insights-into-bestiality-and-zoophilia.42/