Authorities in Dallas say a fire that broke out at a shopping center has killed more than 500 animals, most of which were small birds

An official with Dallas Fire-Rescue said Dallas Animal Services removed a total of 579 animals from the scene, all of which died due to smoke inhalation.

Dallas firefighters, accustomed to extinguishing flames, became heroes for the smallest of victims, performing CPR on a tortoise and reviving a near-death puppy.