A worldwide community photographing and learning about wildlife
If you would like to, you can add your great spot to the "Rhinos of the World" mission and help us to raise awareness for this endangered species: http://www.projectnoah.org/missions/1284...
Here is a link to help with the confirmation of the ID suggested: http://en.wikipedia.org/wiki/White_rhino...
I agree with Ihazapughappy, this is indeed the White Rhinoceros.
Did you spot it at a zoo?