Portland photographer Carli Davidson went from a small cabal of online animal photographers to a HarperCollins book deal with her photos of dogs midshimmy. "Shake" comes out Oct 22. As part of our profile, we collected photos from a range of her series, from "Disabled Pets" to "Birds of Prey" (plus an uncanny side-by-side of "30 Rocks" Tracey Morgan and an otter).