23 septiembre 2015
When did the enamel that covers our teeth evolve? And where in the body did this tissue first appear? In a new study, researchers combined data from two very different research fields — paleontology and genomics — to arrive at a clear but unexpected answer to this question: enamel originated in the skin and colonized the teeth much later.
http://www.sciencedaily.com/releases/2015/09/150923133459.htm
