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Slide: 1
Age can be estimated from the plates that have fused on individual bones, which are called the femur.
The growth plates are visible in younger people, but fused in older people. The fusion can show how old someone is, so the older the person is the less visible the growth plates are.Femur on top- Tibia bottom
And the structure of the skull close at different ages until the skull is all sealed. (Lambdoid, Squamous, Coronal, Sagittal close at 30-40 yrs) (For Coronal could be 24 but in Metopic 3-9 months)
Another way we can find the age is by teeth, in children's teeth they erupt in a particular pattern at around the same age.
Slide: 2
Skull features may give clues about ancestry, there are different in skulls between ancestry groups. (African, European, Asian) In general wider nose spans in Africans, Europeans high nasal, Asian heart shaped nasal.
However, as humans travel and meet different people with different ancestries we have a tendency to mix a features blend. Which increase genetic diversity in the human species.
Slide: 3
To find gender there are differences in male and female, not very prominent until the influence of androgens (testosterone, estrogen, progesterone) during puberty
male skeletons tend to have thicker, stronger bones than female skeletons.The attachments of the tendons on female skeletons tend to be smaller and the skeleton is more gracile which is smoother than the robust male skeleton. These trends are not true for every person.

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