What Is a Cowlick and Why Is It Called So?
What Is a Cowlick and Why Is It Called So? A cowlick — sometimes called a “hair whorl” — is a small group of hair that either stands straight up or lies in...
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What Makes People from Different Parts of the World Have Different Skin Colors?
What Makes People from Different Parts of the World Have Different Skin Colors? People noticed long ago that people from different parts of the world often had...
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Why Does a Pair of Identical Twins Look Alike?
Why Does a Pair of Identical Twins Look Alike? If you’ve ever seen a pair of identical twins, then you know that they usually look…well…identical! That’s...
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What Is Haemophilia and How Does It Affects Clotting?
What Is Haemophilia and How Does It Affects Clotting? Having haemophilia means your blood cannot clot properly. Contrary to popular belief, this doesn’t mean you...
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What Makes Eyes Different Colors?
What Makes Eyes Different Colors? What a baby is going to look like depends on the 46 genes in his body cells. Half of these genes he inherits from his mother, and half...
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