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20 Interesting Facts about Science · You may not realize it, but you are more bacteria than humans. In fact, only 43% of the cells in your body are actually human. The rest are made up of bacteria, viruses, and fungi. The majority of these microbes live in our gut, where they help us to digest food and fight off infection. While some bacteria can cause disease, the majority of them are actually beneficial to our health. In fact, we would not be able to survive without them. · The average human eye has enough resolution to process images at 576 megapixels . But we only see at a resolution of 150 dpi because that is more than enough visual information for us to recognize items. The human eye is able to see a wide range of colors and detail because of the high number of photoreceptor cells in the retina. The retina is a thin layer of tissue at t...