snowleopard, to just to give you some assurances about Lisbon Zoo here are some of what appears to be the latest developments. http://www.zoochat.com/464/gorilla-enclosure-temple-primates-34798/ http://www.zoochat.com/464/lar-gibbon-enclosure-34814/ http://www.zoochat.com/464/tiger-temple-34859/ http://www.zoochat.com/464/orang-utan-outside-34829/
Cheers Jimmy for the links! What is an embarrassment is that it took the zoo around a century to update several of its enclosures, but at least Lisbon is finally on board with the modern exhibitry found in many zoos worldwide.
I don't know if this old gorilla exhibit is still in use, but i think so and I bet, they keep a few new monkey species in it, to enlarge the collection. Yes, the Lisbon Director is a collector of animals....