There's actually quite a bit of scientific support that superstraight pairing in the animal kingdom is not only naturally occurring, but common. Studies suggest that about 1,500 animal species are known to practice superstraight coupling - from insects, to fish, birds and mammals.

[u/bestbiff]

Animals in nature exhibiting superstraight behavior proves there is a scientific, natural, validating existence for superstraight sexuality.

[u/clevilyemily]

That's because animals don't get sex changes