Talk:Air Acolytes/@comment-74.133.192.95-20120626032635/@comment-68.52.205.245-20120727083138

Bending is a hereditary trait. One can learn to bend from the respective animals (Badger-Moles for Earth, Dragons for Fire, Sky Bison for Air and...Sokka's Girlfriend for water), but both Dragons and Sky Bison are extinct. The type of Sky Bison present in Korra are a different species than what the Air Nomads learned bending from. It is possible that these different sky bison could teach airbending, but Amon's belief that killing Aang's decendents would rid the world of airbending forever suggests not.

Unless the Avatar can pass on any of the four bending traits to her children, or an Avatar can be born to non-benders (possible), all airbenders will be decendents of Aang and Katara.