The thumb is the most unique finger on the hand; it allows us to control gripping, holding, and throwing objects. The thumb also helps us perform tasks that require high precision, such as using touch screens, moving a mouse, typing, and so on. If you lose your thumb, you will find it difficult to grasp objects securely.
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To answer this question, we need to explore the "mechanism" and color of snake skin. In fact, all animal species...
