…You know that cute, puppy-dog eyes thing that dogs do to get love and attention? Yeah. Apparently that’s a thing that dogs specifically evolved to do, since humans favoured dogs who could do that. They literally have muscles in their faces that wolves lack which enable them to pull that cool I’M A PUPPY LOVE ME face.
Juliane Kaminski
Read more: https://www.newscientist.com/article/2206696-dogs-evolved-a-special-muscle-that-lets-them-make-puppy-dog-eyes/
Read more about it here in the original research paper.