I don't know, 53 years with the same human being? I can't be around myself for more than three or four hours before I want to kill everybody.
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.
I mean, when you're a pioneer and you are at the forefront of an offensive, you're going to be the most optimistic person.