Curled tongue yawns

What is it that’s so adorable about an animal yawning? Is it the way its eyes scrunch up, or the sweet little yowling sound that usually accompanies the yawn? I think it’s the curled tongue that makes an animal yawn irresistible. Look at these pictures and tell me if I’m wrong.

Nice side shot of a curled tongue yawn

Picture 10 of 10