By unrelenting barking at her belly, a dog saved the life of her pregnant owner.

36. Miley Saved Her Family From Carbon Monoxide

In an effort to keep her owner, Stacie Pitts, from nodding back off, Miley, an Arkansas puppy would make loud noises. She would not let her owner sleep either. Stacie felt right away that something was not quite right. Her whole family woke up and she found that everyone was suffering with terrible headaches and nausea. When they all visited the hospital to learn Miley had protected them from a possibly lethal overdose that may have permanently damaged their lungs, they were all shocked.