The hero is a man who becomes an animal. This allows the female protagonist (and the reader) to have it both ways. She enjoys the raw, unadulterated loyalty, scent-based communication, and protective ferocity of the wolf, but she also gets the opposable thumbs and verbal "I love you" of the man.
We are already seeing mainstream adjacent hits. The video game Baldur’s Gate 3 allows a female player to romance Halsin, a bear-Druid (who literally has a sex scene as a bear). The fantasy TV show Sweet Tooth plays with the innocence of hybrid children. The dam is breaking.
What remains consistent is the female fantasy at the core: To be chosen, protected, and cherished without the need for language, manipulation, or social game-playing. Whether the hero has a human face or a lion’s mane, the storyline whispers a single, seductive promise: You are my pack. And I will never leave. Is the "woman with animals" romantic storyline a sign of cultural decay or a brave new frontier of empathy? Perhaps it is simply a mirror. For millennia, women have been called "beasts" (hysterical, irrational, animalistic). Now, in fiction, women are looking back at the animal and saying, "Yes. And I love him."