Research confirms what most of us have the instinct to be kind to the animals we see around us. In Sydney, the presence of animals have a greater positive impact in peoples lives physically and emotionally. Sydney has very unique animals. It has Koala's which are very rare to the USA unless kept in a zoo, kangaroos, and Australian babblers. Australia is not only unique because of its animals, but how clean it is too. Pollution is at a low, and the cleanliness is high. There is not a lot of litter, there is good air quality, and clean water.