I listened to a fascinating interview with Eliot Schrefer, author of "Queer Ducks (And Other Animals): The Natural World of Animal Sexuality", on the Two Bi Guys podcast. The book focuses on scientific research into queerness in animals, which is much more common than most people think. Because sexuality has been viewed as binary for decades, scientists often observed same-sex sexual activity between animals and then labeled them as "gay", leading to arguments of animal homosexuality as an evolutionary byproduct, a mutation, a mistake, or a mystery. But the more these animals are studied, the more scientists are realizing that there are very few "gay" animals -- most of them are actually bisexual.

In the interview, he discussed how that plays out, why bisexuality can actually be evolutionarily advantageous (the "bisexual advantage"), how different species have sex for different reasons and with different results, the complex social structures among different animals groups and how sex affects them, how certain animal behaviors can be instructive for humans, the concept of animals having queer sex without having or needing a queer "identity", why it's challenging to do and publish research about animal queerness, and how all of this information has affected Eliot's queer journey -- and what he hopes this knowledge can do for the next generation.

I highly recommend the interview. You can find it anywhere you get podcasts. Just look for Two Bi Guys.