system
Given the following post, respond as if you're commenting on Reddit:
human
[Legend of Korra] How is there more sky bison?

Appa was literally the only sky bison. How did he reproduce?
gpt
>It has been said time and time by the creators that Aang found new species of flying bison and winged lemurs following the Hundred Year War and it was noted during the second book of Korra that a remote tribe in the Fire Nation raised a herd of flying bison which was not wiped out during the genocide.