My memory of Watership Down is vague -- I read it in college, on the recommendation of a friend who was captivated by it in 7th grade. I think I was too old at that point for it to change my life. One of the things I remember liking about it, however, was how animal it is. Yes, it's on one level a commentary on human society, but it's in such a clear rabbit-perspective -- my memory is of rabbits who think and observe in a way rabbits really might, if they had a certain level of consciousness. Which got me to thinking.
There are so many books about animals in which the animals act essentially like humans: The Wind in the Willows comes to mind, and of course there are lots of others, especially in the picture book world. The animals chat with each other, have tea, wear clothes. In what other books do animals appear straight-up as animals, interacting only with other animals as part of an animal society rather than in concert with humans? I am drawing a blank here, but wondered if anything springs to mind for you.
I'm at my parents' place tonight, and was scanning their shelves for inspiration when I came across a couple of my childhood books which don't try to depict animal society at all, but anthropomorphize animals as a way to write about famous historical figures.
Mr. Revere and I never grabbed me quite as much. Perhaps it's because a mouse can go more interesting places than a horse; perhaps because Franklin is a more interesting man, on the whole. Still, it's another accessible and interesting entry into American history.

Love, Annie