Protection of endangered animals. In the earth there are many endangered animals. How is it possible? There are many causes: pollution, forest destruction, global warming, raising of sea level. The animals at risk are who they live in the ice like polar bear or siberian tiger, or that they live in tropical forest like parrots or some species of monkeys, or other particular creatures like koala in Australia or panda in Asia. In spite of efforts made to protect them, these are not enough. Although many zoo had tried to make safe endangered animals in the past, some of them has extincted like some species of tiger, rhyno and lion. It’s absolutely necessary that all humans start to protect animals because their presence in the planet garantee our survival. All the earth will be in danger if wildlife desappear. One might says: “It’s the circle of life”. But this is not correct. If everybody safeguards wildlife, also in their native place, and if people stop to destroy animal’s habitat, they will be no more at risk. In conclusion: it is extremely important to defend all creatures of the world because from their survival depends this of all human population too.