For many of us, our closest meeting with wild animals is at a zoo. These places allow us to observe the behaviours and characteristics of amazing creatures. It's an enjoyable and educational experience for us, but is it the best environment for the animals? A long time ago, people could only see wild animals as stuffed dead exhibits in a museum. Later, live animals were caught by explorers, brought home and put on show to the public in zoos—animal protection was not a priority. But modern zoos and wildlife parks have transformed the conditions and environments for animals, making bigger enclosures（围场）, removing bars, and, to some extent, copying their natural habitats. 

Some people have questioned the cruelty of keeping animals and using them just for entertainment, but zoos are keen to show they are here to help wildlife by educating us about protection. In the UK, the introduction of The Zoo Licensing Act 1981 also required zoos to educate the public. Well-managed zoos are now also involved in supporting and funding protection programmes. 

Probably the biggest claim from zoos today is that they help to protect species that are under threat in the wild due to climate change. Robert Young, Chair in Wildlife Protection at Salford University says: "We wouldn't have a lot of different species today if it wasn't for zoos." Some zoos have breeding （繁殖）programmes which help to preserve the future of species. Actor Leonardo DiCaprio recently praised Chester Zoo in the UK for its protection work. It brought a rare fish species back from the dead after breeding and releasing a school of golden fish back into their native river.

While the debate about having zoos continues, new opportunities to meet wildlife are being explored, such as using virtual reality, and Jon Coe, a zoo designer, told the BBC: "Taking a walk through a group of elephants in the Serengeti, I think, is going to be possible pretty soon."