When a dog humps whereas it’s the same sex or opposite it’s all behavioral not preference. My dog humps me, does that mean she’s into human moreso other dogs? Dogs don’t know why they feel how they feel. Their base thinking comes from easing anxieties, and what makes them feel good. The dog doesn’t chew on the shoe because it taste good. It chews on it, because it smells like you, and misses you. He doesn’t know why he keep chomping on it, but each smell brings a sense of you to him to alas ease his anxiety. And also it can be they just were in the heat of the moment due to again, behavior. To research on this topic needs to be proven widely just beyond you watching animal porn. Regardless animals don’t have a voiced & they certainly don’t need the ones that do, to speak for them if it is going to attest to what reasonable cause? What’s next? Can you determine their religion? I don’t have anything against the lgbtq community, but this whole documentary seems exploitive and inappropriate. Also stop watching shrek.