GAF: "durrrr animalz aren't equal to humans"
Seriously though, that's all perspective. To humans, yea, we think we're more important to the world than anything else. GAF's argument is that if we had a choice between saving an animal or saving a person, we should save the person. Why? Because we said so? We're biologically "animals" ourselves. What makes a human better than an animal? Because we have more capacity to fuck up the world, like we do on an hourly basis?
I don't know, I guess if you look at the bigger picture of the world, really, we have no more of a "right" to be here as anyone or anything else.