Siberian Tiger

I don't remember seeing one of the Siberian Tigers at the Calgary Zoo actually in the stream that runs through their enormous enclosure before. Taken on August 26th.

"The endangered Siberian tiger (Panthera tigris altaica), also known as the Amur, Altaic, Korean, North Chinese or Ussuri tiger, is a subspecies of tiger which once ranged throughout Western Asia, Central Asia and eastern Russia, and as far east as Alaska during prehistoric times, though it is now completely confined to the Amur-Ussuri region of Primorsky Krai and Khabarovsk Krai in far eastern Siberia, where it is now protected.

en.wikipedia.org/wiki/Siberian_tiger

Later note added on 14 June 2012:
Tigers that used to be known as Siberian Tigers are now known as Amur Tigers. The name change is because their range now only includes the Amur Valley in Eastern Siberia.