In the digital era, printing signage can be as easy as clicking a few icons on your computer. While the art of hand-painted lettering hasn’t entirely been usurped by electronic tools, it’s a somewhat ...

No right hands are shown in the illustrations or photos in your story, leading me to believe all the cave stencils are of left hands. As a left-handed person, I wonder if any of the stencil-makers ...

You report that prehistoric hand stencils on cave walls with various digits missing could represent a sign language. I am a computer scientist, not a linguist, so I have a different take on the matter ...