The french desc says :

Endemic predator of the Bones Valley.
They live in a very close-knit pack. Each individual has a clear role and hierarchy, and has acomplex relationships with its pack mates.
Cold-blooded creature, the kivarn receive a part of its energy from the burning sun ofthe Valley. Under good condition, it can run up to six hours without stopping. Its sprint reaches 110 km/h.

[The Translucent] [Evania] [Mherrin]