Elizabeth Weiss
speaker
864 appearances
1 recordings
1 series
first heard Jul 2026
last heard 30 Jul
Elizabeth Weiss’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.
Appearances
And I started looking at these remains and I thought, they don't all look the same.
Some of them were more delicately built.
and some of them were more like what we call robust, you know.
And that is accounting for sex differences, so not confusing male and female differences, but through time.
And what we found is actually when you look at the morphology of the skull and take the measurements and also look at what we call non-metric traits that are just –
variation that shows heritability, so who's related to who, that looking at all the skulls, there were actually likely three different populations, and they were replacing one another.
And this coincides with some periods of drought in the nearby area, where other tribes were moving up north to the San Francisco Bay area, the Alameda County area, where the site was located.
And so, you know, the first excavations occurred in the 1960s, and it wasn't until like 2010 that we actually saw this is not one population.
These are multiple tribes who were engaging in what we'd call intertribal warfare.
There's actually less variation in past populations than today's populations because, you know, if you think about it, there were no computer geeks spending all their day on the desk versus construction workers.
So the variation has expanded in modern time period.
And so you see variation, you can split it up into different types.
There's, of course, age variation.
And then there is sex variation.
And there's individual variation.
And then there's population differences, population variation.
The individual variation is actually less so than what we see today, which is another interesting aspect.
Within each tribe or in each region.
So if you go to one of the other studies that other populations I've studied, for example, were the Northwest Coast Canadian population.
indigenous people the like the Haida and the Tsimshian and within that group they're much more robust than the Californians but within that tribe there's less variation than the modern people of the area so there's population differences and there's
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