This dog is showing us once again why pooches are known as man's best friend.

Yolanda, a service dog in Philadelphia, called 911 on a special phone last week after a fire broke out in her owner's home.

Firefighters quickly responded and put out the fire while the woman, who is in her 60s, went to the hospital to be treated for smoke inhalation.

Yolanda was taken care of, too. The Red Paw Emergency Relief Team made sure to give her food, toys, treats and other essentials

Yolanda has played the role of hero before. Last year, she called 911 when her owner fell inside the house.