Imagine the typical scene in high school cafeterias. You just grab your lunch, and you're walking towards "your table." As you make your way through, you pass by those beefy guys called "jocks," the bespectacled nerds with their thick Calculus books, the black-garbed artsy goths, and the so-called pretty, popular girls.

Now imagine animals doing the same thing. But in their case, chimps kill poor monkeys who are of different species, and some fish actually attack those that are of the same kind as theirs but were hatched from a different lake. A bit barbaric, if you ask us.

However, those behavior point to one thing: our brains are wired to categorize by race, age and gender. So according to Psychology, you might was well infer that stereotyping is unavoidable at one point or another. In fact, stereotyping begins during childhood. A group of researchers showed two pictures of men to some kids, one was Asian, while another is an Arab. When asked which one they like better, most responded that they like the "Chinese guy better because he looks nicer and has a smile on," when in fact both men were smiling. Moreover, the kids reported that the Arab "is a scary dude."

But even if stereotyping is innate in us humans, it doesn't give us a license to make other people's lives miserable just because they're different from us. In fact, Anthony Greenwald, a professor of Psychology at the University of Washington says that "If we're just aware that it exists, it gives us a chance to do something, to be vigilant to not let our unintended biases — our implicit biases — take over our behavior, which can happen unintentionally." After all, those subconscious stereotyping thoughts can only prove to be harmful when we act on them.