This is a good bbc drama although it is a dramatised version of the true story. I wanted to challenge the point another reviewer who says we cannot justify zoos in the modern world. That is an idiotic statement and one that is what is wrong with the world at the moment. Zoos are more important than they ever have been. They are key in conservation and education. They are breeding animals that are in danger of going extinct and educating people all over the world in why animals need to survive rather than killing them directly or indirectly. It's a shame the internet has allowed ignorant people a voice.