Norman Ohler

So Homo erectus, there's no proof that they actually used it, but they were living in that area and the plant was there.

So you can write about that.

So it's interesting because they were able to do certain things like they shed the fur.

They were the first ones to suddenly be naked.

And that has the effect that sweat glands are produced.

Homo erectus could sweat it out basically when they were very hot.

what animals couldn't do because they had the fur.

So an antelope can run faster as a homo erectus, but after 10 minutes, the antelope has to stop.

That's what dogs do.

The tongue goes out.

And humans didn't have to do that because they were sweating.

So they developed the jogging mode, basically.

So they were jogging.

They were not sprinting to get the animal.

They were jogging it.

And when the animal couldn't do it, had to rest, then the humans would come and hunt it down.

So Homo erectus was evolutionary, very good.

And then later, one of the species coming out of Homo erectus is Homo sapiens.

And Homo sapiens, at one point, there were only like about 1,500 people left.

There were not a lot of Homo sapiens.