[Gladwin]

Due to walking upright, the attachment points for muscles on the skull are different for humans compared to chimpanzees.

[G Larry]

Nothing in the reporting of this recent skull indicated evidence of muscel attach points, in concluding it's linage to humans.

[gitmo]

Due to walking upright, the attachment points for muscles on the skull are different for humans compared to chimpanzees.

I think it's the other way around. Unless you're a LaMarkian of course.

[MichiganMan]

Due to walking upright, the attachment points for muscles on the skull are different for humans compared to chimpanzees.

The opening through which the spinal chord passes is angled differently as well. So a skull all by itself is capable of providing a probable indication of its owners ambulatory habits.