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09-23-2015, 09:50 PM
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Fish scales to fangs: Surprising tale of how teeth got their bite
Fish scales to fangs: Surprising tale of how teeth got their bite
WASHINGTON (Reuters) - The origins of the enamel that gives our teeth their bite is ** ordinary Fish tale.Scientists said on Wednesday fossil and genetic evidence indicates enamel did **t originate in the teeth but in the scales of ancient Fish that lived more than 400 million years ago, and only later became a key component in teeth.  ??????? ??????: Fish scales to fangs: Surprising tale of how teeth got their bite || ??????: ahlam1399 || ??????: اسم منتداك
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