Then, whenever a baboon sat in front of a mirror, the researchers pointed a laser pointer to parts of ... Sometimes they gestured at their own reflections for a brief period, or turned around ...

All laser mirrors require antireflective coating on any uncoated surface to reduce the laser second reflection and scatter. Although most commercial microscope companies specify 1-millimeter-thick ...

but throughout our study they didn’t quite understand that the mirror’s reflection represented their own bodies and that the laser mark in the mirror image was, indeed, on themselves.

It's a bit like using a mirror. The reflection is the same distance from the mirror line as the original shape. Which just happens to be the distance to your mouth. Right, I can see where this is ...