Biology and Psychology
Glinnvyr are ice worlders who have transcended the slowness of typical low metabolism life by shifting metabolic states- being statue-like one minute and moving at insane rates as needed. The Glinnvyr are in a niche akin to a more social jaguar, climbing in trees and hunting down prey. However, despite their low sociality they can be shockingly coordinated. Their social structure is more egalitarian and individualistic than humans, with much less social stratification in general, often being united by common ideas more than by kinship. The Glinnvyr body design is very elongated, with three jointed limbs that at the third joint split into two sub-limbs which act like both extremely large grabbers with their hands and feet at the ends of them.
The Glinnvyr can radically alter their time perception as needed, in factors of 100 at most. Most Glinnvyr tend to seem like statues until they inexplicably move rapidly, sometimes