A Missouri dog is being hailed as a hero for waking his owner in time to escape a raging house fire.

Watch as a fearless dog steps between a menacing mountain lion and its human companion — risking its own life in a heart-stopping moment of loyalty and courage. In this gripping video, the dog’s ...

Add Yahoo as a preferred source to see more of our stories on Google. Watch as a fearless dog steps between a menacing mountain lion and its human companion — risking its own life in a heart-stopping ...