What did prehistoric peoples use as a light source when exploring caves or creating cave art?

by blfstyk

I believe many cave paintings are deep inside the caves where no natural light can penetrate. How did the artists manage to keep a bright enough light source that they could easily carry and then have it be stable enough to work on their art? Maybe some kind of animal fat lamp?

Searocksandtrees

Hi OP, for questions about prehistory, it would be worth x-posting to /r/AskAnthropology. While there are some anthropologists in this sub, deep prehistory, neanderthals, etc. is generally way out of their scope.