Are there any good book that show you how to draw wild anime/manga animals?

Off the top of my head I know one manga that features a wolf that changes into a man as the moon rises (NOT a werewolf, though opposite of the concept of it, because he can transform every night into a man as long as there's a moon in the sky, though as the moon wanes the length of time he's human lessens). It's better to understand if you read it though haha. But I warn you, it has quite a bit of smut in it, so be forewarned if you're too young. ^.^

Here's a link to the oneshot/prologue to it (though it doesn't have as many appearances of him as a wolf): http://anymanga.com/kindan-no-koi-wo-shiyou/001/00...

And here's a link to the whole series, which has quite a few instances where he is a wolf: http://anymanga.com/kindan-no-koi-wo-shiyou/001/00...

Hope I helped!