Why do humans think everything belongs to them? I think alot about humans and other creatures and it seems that humans are the most useless creature for the other creatures. For sure the ability of thinking cause they invent lots of things and know the world better. But humans inventions and sience aren't useful for other creatures alot. And somehow they cause lots of problems for the environmemt and other creatures. Somehow we're making the world impossible to live for every creature. What does give them the right to use animals for doing researches on them? Most of us may answer "We have touse them in order to save humans' lives"! But who said humans' lives are more important than animals! Just because they can't protest about that, we have the right to do everything we want! For sure I'm not going to tell you humans and other creatures should be equal! You know I'm going to get some conclusion from this discussion. But first of all I want to get your ideas about that. Are humans' lives more important than other creatures? Why? PS: I'm not saying these because I prefer animals to some humans!