anatomy

  • A montage of human anatomy including a close-up of an eye, red blood cells, a torso showing internal organs, a brain, a cross-section of a tooth, and layers of skin.
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    20 Facts About the Human Body That Are Stranger Than Most People Realize

    Your body produces millions of blood cells every second, renews parts of your digestive tract in days, and can retain fetal cells for decades. These 20 strange facts reveal the surprising science behind everyday biology.