Dogs laugh, but they laugh with their tails.
Sentiment: POSITIVE
Investigators have discovered that dogs can laugh, which can't be too big of a surprise.
The primate laugh is given in playful contexts, and as such has a strong similarity to the human laugh.
When I say something funny, I don't laugh.
When dogs fulfill their roles they are ecstatically happy.
Laughter is the brush that sweeps away the cobwebs of your heart.
Every dog has his day, unless he loses his tail, then he has a weak-end.
We don't laugh because we're happy - we're happy because we laugh.
Laughter is one of the very privileges of reason, being confined to the human species.
Laughter springs from the lawless part of our nature.
No matter what hyenas sound like, they are not actually laughing.