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I have said previously on many occasions on how fascinating genetic discoveries in animals lead to more understanding to our own species. There are many things that we don't understand exactly about genetics, and I've been always curious on how curly hair is formed, what exactly goes on in a cell to make the hair curl inwards. It's often difficult to study parts of the human body, and the example in the article is that human hair cells tend to wind around each other in tangles, making them hard to study.
I never had stopped to think on what causes hair to become curly, naturally of course. The article discusses theories, and the scientists discovered after studying the sheep hairs meticulously that certain cells were longer than other cells, and that the difference between these cells were most likely the reason for curliness. This doesn't exactly answer our questions about human hairs, but they believe studying hairs of other animals will help us try to understand our own hair and cellular structure. We have much to learn from animals, and a lot of discoveries were traced back to studying traits or behavior in animals. It shows how much more we have to learn about ourselves, and our world.
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