Where do Lalafell come from?



Ok, ok, I jest.

In either case, the Lalafell appear to be originally island dwellers, with the environment of the island having an impact on their evolutionary past. I would theorize that, before the great flood of the 6th Umbral Era, the Lalafellian population were united and it is only since then that they have branched. This is much like how the Miqo'te didn't become Keepers and Seekers until well after their arrival during the 5th Umbral and the elezen did not differentiate between Wildwood and Duskwight until the foundation of Gridania.

Desert condition islands > Dunesfolk.
Fertile Islands > Plainsfolk.

The fact that they are described as islands may also have an impact on their physical size. Scientists (IRL) have been debating the reason for the exceptionally small stature of the Homo Floresiensis, with the popular theory being an evolutionary reaction to the small volumes of food and resources available on their island environment.
https://en.wikipedia.org/wiki/Homo_f...s#Small_bodies

Who knows? The Lalafell could have had a common ancestor with the Hyur.