Why are national parks and zoos important?

We can see a lot of animal species in the zoos. We can learn about their natural habitats from the information displayed on the boards attached to their enclosures. Earlier, only exotic animals were kept in zoos and very little thought was given to improving their surroundings. Today, most zoos are making special efforts to conserve and breed rare species. Specialists supervise the breeding programmes so that there is no risk to the animals' health. National parks also contribute to the preservation of species. Areas that are especially worthy of protection are designated as UNESCO World Heritage Sites.