Tokyo Jungle? Ha, more like Dubai Jungle. Artist Richard Allenby-Pratt's project "Abandoned" shows Dubai in ruins and overrun with a variety of exotic animals that aren't exactly indigenous to the region.
The photos are striking, and if Sony needs inspiration for a Tokyo Jungle follow-up, this might be a good place to look.
If you missed them, check out Kotaku's impressions of PS3 game Tokyo Jungle.