Prof. Pierre Zalloua

Well, I think the beauty of ancient DNA is because you can archaeologically date, because you can carbon date and use other methods to actually date that material.

So we know exactly using ancient DNA or ancient material is how old the material is.

So that's something that we have now.

For example, when you discover...

neanderthal dna which is a very old dna so from other methods you you can actually date that skeleton

or those remains, and you can actually put a date to it, and then when you extract the DNA, you now know that people who lived 100,000 years ago or 50,000 years ago, this is what their DNA looked like, and you compare it to what the DNA looked like today, and then you can actually look how much did it change in 50,000 years ago, knowing that, knowing what we know from science is, yes, DNA changes every generation,

But it's like a clock.

We know exactly the changes that actually can happen through time.

And by doing this comparison, we will be able to know if this change is actually a normal timeline change or if something else happened to these people.

Did they disappear or the people living today are the direct descendants of these skeletal remains?

So let's discuss first, why do people move?

Okay.

So why did our ancestors leave Africa?

Okay.

Well, they need better technology.

you know, better place to live because either heat was too much or the hunting grounds were actually, you know, getting, they shrunk, et cetera.

So they go from one environment to another because to survive.

So people move throughout history.

They've been moving throughout history to seek better climate

better places to hunt, better places to live, et cetera.