The second in a two-part investigation into conditions in Europe's zoos asks, how can a bad zoo change, and what happens if it can't and has to close?

Wildlife campaigner and Born Free actress Virginia McKenna retraces the footsteps of her late husband Bill Travers to the zoo he most wanted to close, Limassol on Cyprus. Has it changed for the better?

And the director of an Armenian zoo described as "one of the worst in the world" visits one of the best - Jersey Zoo, whose pioneering work was inspired by author Gerald Durrell.

Among the contributors are Kent zoo keeper John Aspinall, whose policy of allowing keepers to go in with tigers and gorillas met with opposition from the local council; Gerald Durrell's widow Dr Lee Durrell; and Pam Mansfield, who keeps unwanted zoo animals in the back garden of her council house.