**PART 1 *WHY CERTAIN GENDER OF MOSQUITO ATTRACT AND FEED ON HUMAN BLOOD ...?* Do mosquitos prefer a certain blood type? Maybe—but it’s not just one factor that influences why these winged pests are attracted to us and researchers can’t seem to agree on a definitive answer. There are two kinds of people in the world: those who return from time in the outdoors covered in itchy mosquito bites and those who can spend hours in the same space and avoid getting bitten at all. Let's face it, mosquitoes are not equal opportunity feasters. So, what exactly makes some people more attractive to mosquitoes than others? Science reveals that a variety of factors might make you more palatable to mosquitoes, from your skin microbiota and carbon dioxide emitted in your breath to the color of clothing you're wearing (with colors like red, orange, and black being the most attractive to mosquitoes). But in the end, much of the variation in mosquito preference comes down to two factors: our natural body odor and genetics.