Originally Posted By: BranShea

When you look at the linked cave you see animals drawn, painted.
But in between the actual drawings, just with a little bit of imagination you can see more animals just by means of the light striking the unevennesses of the surface.


It's call pareidolia. I'm not saying that this disproves the idea but it suggests that our seeing animal shapes in natural features on the cave walls when our minds are primed by the paintings to see those shapes does not support it, either.