- So here, you can see a monkey bone.

We can clearly see the V shape.

This V shape cut marks only can produced by the stone tools.

- Yeah, so this here, that's where somebody is cutting it.

- Yeah, they are cutting, or skinning also can be possible.

Whatever is stuck with the bones, they try to remove.

- It's funny, 'cause I think butchery marks often need to look at it through a magnifying glass, but not always, and actually, this one is quite clear, and this is not the kind of thing that you would see if an animal killed it.

This is an indication that this is killed by man.

- This is definitely Homo sapiens.

- And so the question is how they killed them.

(soft ethereal music) - It is remarkable, Ella, because there are lots of trees, very tall.

In second, they can climb up to the top, so therefore, it is very difficult to catch them.

The prehistoric people, our ancestors, should need to develop their own technology to get them down.

So I would like to show you some earliest, which goes back to 48,000 years old.

They develop this bone point technology, and they made bone-tipped arrows.

They identified the monkey bones are really special to make arrowhead, because those are light in weight to hunt these fast-moving animal.

So here, you can see it is little bit chipped, because it's hit, it contacted something, so that is why, at the end, it's very small.

- So that chip mark there shows us that it was actually used.

- Yes.

- I mean, it's amazing 'cause this is obviously, I've got in my hands right now something that was used 48,000 years ago, - Of course, of course.

- and it was absolutely revolutionary.

(tense music) - [Narrator] These bone points are only the tips of the full arrowheads.

Many are chipped from actually hitting prey, and each one would've been attached to the end of a long wooden arrow.

(tense music continues) (birds singing) These hunters didn't invent a brand-new technology, they adapted an old one.

These are some of the earliest examples of bow and arrows found outside of Africa, (tense music continues) enabling Homo sapiens to hunt with exceptional skill and efficiency within the forest.