Character: mei
The goat from the furry book and anime "Arashi no Yoru ni" (One Stormy Night). Mei is a peaceful herbivore. Trusting and possibly a bit naive, Mei forms a lasting friendship/relationship with Gabu the wolf.
The original author of Arashi no Yoru ni, Yuichi Kimura, had this to say about Mei's gender:
"I haven't stated anywhere in the book whether the goat is male or female. I want the readers to decide that for themselves. Although I originally started out writing the goat as a male, I realized it would be better not to limit it by attributing a gender to this character. This is actually a type of experiment I've tried with this book. I wanted to see how far I could expand the book by not limiting the characters by gender. I want the readers to be allowed a chance to interprete this book as broadly as they are capable of."