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Dinos lost their teeth to become birds

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Dinos lost their teeth to become birds

Postby Pajarita » Wed Nov 20, 2019 10:02 am

But how did that happen? New study shows that the predentary bone -which is absent in modern birds, of course, and was thought to have completely disappeared through evolution- was actually covered by the rostrum (which is, basically, the beak itself). Is that interesting or is that interesting?!

https://phys.org/news/2019-11-avian-pre ... birds.html

This link tells you about the predentary bone:
https://anatomypubs.onlinelibrary.wiley ... 2/ar.23455
Pajarita
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