(Sorry for the obscure title reference. I can't see a rhino without thinking about Eugène Ionesco, and I can't hear the name Eugene without thinking about the Pink Floyd track. Thus ends this little diversion into the wiring of my neurons.)
This is an eastern black rhinoceros (Diceros bicornis michaeli), one of the residents of the Lincoln Park Zoo in Chicago.
Again, since I was shooting in full sunlight, I burst-bracketed the shot, and did an HDR merge to recover some shadow detail, and was very pleased with how natural-looking I was able to get with the result (the rust-reds and greens on the animal are the true-to-life colors, believe it or not.) I'm sure I've mentioned it before, but this is really how I prefer to use HDR: to help get the same level of detail that the eye might see in a tough lighting situation and/or bring out detail in a scene (like the texture of the hide, here.) Every once in a while, there's a subject (often architectural) that I think is well-suited to more heavy-handed HDR, but I really do strive for natural-looking results most of the time, which is often pretty challenging. So, I think of it as a useful-but-easy-to-misuse tool (and just one tool of many.)
Nikon D7000 w/Nikkor 18-300mm @ 300mm, 1/90s @ ƒ/9.5 +/- 2.0ev, ISO100, merged to HDR in Nik HDR Efex, with additional color processing in Aperture.