"Folk" is the name given to the many sapient races that populate the galaxy, excluding artificial and parasitic ones. The collective name that implies a community is used in order to avoid species-specific terms.
Five races belong to Esper, representing the five types of vertebrates. They are all exceptional shape-shifters and each race has specific advantages and weaknesses.
Nyran
Annotations:
Plural: Nyran
Collective: Nyran
Avians; based on gryphons
Primary element: air
Secondary element: fire
Trade: weaponsmithing
Tawny
Alabaster
Astur
Feline
Canine
Song'hal
Jungle
Prairie
Eyrer
Suxhim
Human
Annotations:
Humans have evolved separately from the rest of the Folk but share many characteristics with them. Since they do not possess a shape-shifting ability but have a basic humanoid shape, they are sometimes called the "distillation of Folk".