Debate Now Only humans show their teeth in friendship

Was that due to training or instinctive behavior?

 

Dunno if it was nature or nurture, but I do know it proves the OP's blanket statement wrong.

 

I know one of my dogs would laugh when I laughed at something. At first I thought it was a fluke but he consistently did it.

 

Hey, I've got 2 cats that actually smile when they get their ears scratched just so. Not only is that one of their weird traits, but they both also like to have their belly rubbed. If either of them decides they want their belly rubbed, they jump on the couch, roll over on their back, and smile at me.

 

You mean I have to take mine out of my pocket?

 

The Clintons smiled a lot also.

 

It was a selfie.

 

But he took the photo. It was a selfie. So why would that anger him?

 

I started this thread in an effort to raise the human race above other animals by singling out our smile. In my view our smile is a silent form of communication between one human to another that signals friendship or in the least; not opposed too or angry to.

In my effort I shortsightedly attacked other posters for participating in this by showing pictures of other animals who seemingly appeared to be smiling.

My bad, I should have kept my mouth shut and just let the posts take us to who knows where.

Again; my bad, fellow posters; forgive me
Personally, I still believe our smile is unique

I will retreat to the side lines

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humans are jackasses---animals are better