rabidmonkey4262 wrote:
I feel like I need to yawn just by thinking about it. It doesn't have anything to do with someone else being in the room with me. My dog actually yawns when I yawn, which is interesting if you're into the behavioral evolution of dogs. I suspect I wouldn't see the same result with wolves.
Chimpanzees only yawn when other chimps
that they know yawn, but if chimps they don't know yawn they do not respond at all.
NT's yawn whether they know the other human or not.
Fascinating.