One of the drawings is about how to hunt a bear ~ first you put on your ski's. You walk up hill ahead of the bear ~ the bear follows you to the top. Then, you start skiing downhill ~ the bear follows ~ you are much faster (65 mph on your skis) .
You get to the bottom first, turn around, stand your ground with your long spear in both hands tight, and the bear slides right down hill onto your spear!
I think they estimate that one at least 5000 year old ~ but it could easily be even older. These drawings have been exposed to weathering for centuries.
The cold hard facts are the Sa'ami exterminated the bears on the Scandinavian peninsula a very long time ago.
Great example. Human knowledge may have been smaller thousands of years ago, but human ingenuity was not.