Some years ago someone told me about Tim Flach, and when i discovered him i was amazed. Tim Flach is a british photographer that focuses on animals, and surprisingly obtains its natural essense better than no one. Personally i love the way he projects little details making of them the main character in the photo. These are some of the pictures i love the most, you'll find them here: http://www.timflach.com/
Weren't they posing?