Studying the animals though, could give us a lot of insight though, even among mammals, what conditions or circumstances have to be present for them to exhibit unusual behavior, etc...?
For example, I have two male cats, or at least I do now, before that I had just one for about two years, and these are strictly indoor cats, that never ever go outside, etc, have no contact with any other animals, etc, and when I got my other cat, I had to get on to my two year old cat for trying to "dominate" my new cat or kitten a couple of times, etc, but the situation and circumstance is unique, etc, and so maybe a bit understandable, etc, maybe even natural maybe, under those circumstances, etc...
They don't go outside, have no contact with any other animals or female cats and never have, etc, but I did get onto him, my one cat, and he doesn't do it so much now anymore, etc...
But in nature, studying when and what circumstances are present, etc, or when the circumstances are not normal or natural, and creatures might exhibit "unnatural behavior", etc, could teach us a lot about ourselves maybe, etc...
I believe animal behavior is all parts or aspects of what human behavior is or could be, or are that which humans are at least capable of at least, etc, under or in certain circumstances and/or situations, etc...
Anyway,
God Bless!