Biodiversity is a key sustainable for existence in the world. Based on this matter, it may be included into forest, animals and other life that live and/or stay in the forest. In living such biodiversity, it may be connected with each other among life that live forest around the world. Some animals need to get several animals as a food, for example, tiger, lion, wolf etc. so that they may live and continue to exist forever. Some animals do not many animals, but they need to grass and some forests in order that they may live and stay in existence; these may be included in deer, monkeys, elephant and others. Really, these animals may contribute to sustainable environment namely biodiversity on the earth in place.
However, all of these animals need to get forest so that they may live in the forest in order to be survival as continued. Note that some animals have been brought to live in zoo, but all of animals and also not ensure sustainable environment and biodiversity indeed. To leave all wild animals live in the forest, it may be truly biodiversity in connection with cycle life among wild animals in which they may have to rely each other what is existed in forest. In short, biodiversity is served only sustainable for wild animals, but also sustainable for environment in term of pollution and global warming.