Welcome again. This is part two of my talk
on "Dental Morphology: Anthropological and Forensic Applications".
And now that we've covered the basics and gone over
the pattern variation of crown and root traits throughout the world,
now we're going to address
the evolutionary mechanisms that underlie variation in dental morphology,
and also talk about
anthropological and forensic applications
of tooth morphology in bioarchaeology in forensic anthropology.
Now, several questions pop up.
The first thing we're going to address
is why do we see this variation in dental morphology?
How is this impacted by the various evolutionary mechanisms?
We're going to ignore mutation because mutation is very rare
and we have no traits that we could actually link to a mutation,
not counting rare enamel defects and things of that nature.
I'm just talking about the morphological traits that we've been discussing.
So, we'll consider natural selection,
sexual selection and then address the role of genetic drift and founder effect,
and finally, gene flow,
all in the context of these dental morphological traits.