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What does a cavity look like

Cavities are a typical issue in the dental cavity. Inevitably, everyone will experience cavity decay at some point in their lives. While cavities are a common dental problem,…

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What to Know About Navel Stone.

A navel stone, an omphalolith, looks and feels like a hard, smooth stone that forms in the navel or belly button. Another term for a navel stone is an umbilical stone. They are…

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Who invented walking?

Who invented walking first time and when? Around four million years ago, animals began walking in the manner in which people do today. And three million years ago, in Kenya,…