It mostlikely died of natural causes or was killed by a firebender. Ether by sozin himself or someone else. Actually, it is believed sozin started the custom of killing dragons, so he would be the only one with a dragon pet and I doubt he would tolerate another firebender attacking his ...
In 1924, Hidesaburō Ueno, a professor in the agriculture department at the University of Tokyo, took Hachikō, a golden brown Akita, as a pet. Ueno would commute daily to work, and Hachikō would leave the house to greet him at the end of each day at the nearby Shibuya Station. The ...