Humans have grown to a point where we not only create large ambitions, but are filled with the determination and ability to achieve such large ambitions. That is what separates us from animals in terms of rights. We can realize our goals, and they cannot. For the sake of the betterment of our species, and to realize our individual and group efforts, we will continue, throughout the course of humanity, to not only torture, but to simply force animals to stay at the level they are in the world.
In order for one creature to survive, another must die for the benefit of the survivor. Carrying capacity, disease, and now, human intervention shape the overall economies of the animals around us.
To summarize:
1. The torturing of animals for amusement is wrong, simply because we are depriving a life of the right to pursue a life without pain, despite the contradictions to this right, without using it for the benefit of any individual or species. A life wasted is no life at all.
2. Torturing of animals for medical research shall continue for the ever-growing quest to obtain all knowledge, the backbone of human development.
3. The torturing of animals as the basis for the testing or creation of a leisurely object can be argued about validity based on the product in question. In short, I do not have the means to argue on this point's behalf.
4. I do not enjoy torture, I do not wish to support it, but when necessities become apparant, not much can be done to correct a system that has been firmly established.