There are lots of examples of fantasy stories that center on the exploits of a group of animals. There's The Rats of NIMH, Watership Down, Guardians of Ga'hoole, etc. And I was listening to "Dirty Paws" by Of Monsters and Men and have always thought it sounded like the plot of a fantasy story featuring animals (the birds and woodland creatures in an endless war against the Queen Bee) in the forest of talking trees.
Pathfinder has rules for how the conversion works (there's a spell called Awaken that makes intelligent animals):
http://www.d20pfsrd.com/bestia...er-listings/animals/
I could see this going a couple different ways - first, the animals could be Awakened in a human world, meaning they engage with human things as animals. Or, it could be more along the lines of Watership Down, where the animals are living in an animal world that exists in parallel to the human world (humans and their things being one of the chief dangers in the world). Or, it could be like Guardians of Ga'hoole, where the animals are doing their own thing. I see the Dirty Paws idea going that way.
Would anyone be interested in playing in such a game? And more importantly, who can I get to run it?