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Why don’t teeth count as bones?

Despite their hard, rigid structure, teeth are not classified as bones. They are distinct entities primarily composed of ...
Learn more about the human tailbone and how, even though we may not have a strict need for it anymore, it still helps us with ...
If we look across the whole of the mammal branch of the tree of life, we find there are many groups of mammals that have ...
In this 4.4-million-year-old skeleton, scientists may have found the missing step between climbing and walking.
Researchers reviewed more than 60 studies and found evidence that plastic particles can reach bone tissue, disrupt cell ...