One researcher just determined that African and Indian elephants make each other sick. When a new animal or plant is introduced to a habitat bad things happen. The biggest danger to native wildlife is foreign wildlife.
“To seek the timeless way we must first know the quality without a name. There is a central quality which is the root criterion of life and spirit in a man, a town, a building, or a wilderness. This quality is objective and precise, but it cannot be named.”