Millions of years ago, we humans lived inside caves and hunted for our food to survive. But as we progressed intellectually, we learned to utilize and manipulate our surroundings better. In this way, we became the strongest species and gained control over remainder species. At sometimes, how we choose to use this power makes some of us wonder whether if it’s fair. In a highly sophisticated time, the year 2011, we are capable of launching rockets out to the universe, build a hundred store buildings or even destroy a whole country with nuclear weapon. With this kind of power, we live as a superior. We get primary access to natural resources and often use animals to get what we need. For example, farm animals have been our great source of meat, dairy product, clothing and labor from thousands of years ago. But the way we obtain these may seem unfair to some people. The notion of hurting and slaughtering animal is always cruel. There have even been shocking reports of how slaughterhouses are run, in which they kept animals in an overcrowded, filthy environment and poorly nurtured before killing them. Although this prompted regulation laws, it still distressed some people. I was also disturbed when I learned how milk factories biologically modify cows to produce milk faster. The milk factories genetically modify and dose cows with special hormones, which speeds up milk production ten times faster than natural rate, then the cows are hooked up to milking machine all day long. It seemed very cruel. But from a different perspective, human preying on weaker species may be natural thing to do, just as how tigers would prey on jackals. It is essential for our survival. As much as it's unfair to hurt animals, some sacrifices do bring great benefit to the society. For instance, by experimenting medicine on rats, we are able to save millions of lives. In a way, it makes world better place. Currently, diverging viewpoints of animal rights are held by jurisdictions throughout the world. Mexico for instance, has very little to no law protecting animal rights (though, slowly started implementing animal right laws recently). On the other hand, in Switzerland, jurisdiction against animal cruelty are among the strictest in the world, such as requiring appropriate cage sizes for rabbits or sufficient amount of exercises for dogs. In United States, however, Animal Welfare act was introduced in 1962. Generally, animal protection laws around the world approves of killing animals (in a humane manner) for food, clothing, material and research and tries to minimize unnecessary suffering of animals. The laws also prohibits killing of endangered species to prevent extinction of rare species. Nonetheless, some individuals even choose to become a vegetarian to help reduce worldwide consumption of meat. After all, resisting meat requires high willpower and strong devotion, it shows how compassionate people are about animal rights. But animal cruelty does not only stop on slaughtering of animals, there are many instances in which animals are abused. In some zoos for example, animals are kept in cages that are too small or when farmers couldn’t afford to feed their horses, they abandon their horses, leaving them starving to death.