A lot of animals are very intelligent and yes they can distinguish the difference in sex (dumbest thing I've heard someone say tbh)
"Science is predominantly superstitious beliefs" again lol, just firing shots in the dark at this point especially when it comes to studying biology which has millions of years of factual evidence behind it.
I only mentioned it to explain why I knew what I said, since you seem to be under the impression I just look up gay animal sex for fun, nor do I major in animal biology - just a fact I learned through evolutionary studies.
How is it stupid logic? These animals don't engage in "play fight/wrestle" they have full-out sexual intercourse I don't get why anyone could compare that to little kids play fighting(but again, you're just firing shots in the dark).
I didn't say they were gay (most animals that participate in homosexual behaviour also perform in heterosexual behaviour) they do it for sexual stimula (yes they know they are having intercourse with the same sex) which just shows it's natural that same-sex couples can feel attraction to one another and it's not just some error in human biology since it's been widely observed for thousands of years.
Some animals are even strictly homosexual. Sheep would be a good example, to statistical date 10%~ of rams are strictly homosexual.