We had great fun at Panda Base Chengdu and took way too many photos, it is quite possible to spend your entire travel fund in the gift shop although we behaved ourselves very well and only bought one little trinket for our animal mad niece.
Pandas do their own selling really, I imagine whoever is trying to save the Oregon Giant Earthworm must sometimes wish for a more photogenic subject (even if it is 1.3m long!)
I will try to stick a few more photos up but internettage is very slow here and uploading to Photobucket can sometimes suck out one's entire life force.