Like i feel like languages diverge but like I feel like the worried/angry/happy facial expressions are universal. Are they? Am I right? why?
Like i feel like languages diverge but like I feel like the worried/angry/happy facial expressions are universal. Are they? Am I right? why?
the hypothesis that dogs learned some expressions to communicate better with humans makes sense, but some expressions like showing the teeth to express disapproval is present in various mammal populations