The weasel is similar to the glutton but much smaller. It is very afraid of humans, like squirrels. It does not climb trees, instead it runs away when frightened. They have little skin that turns into weasel fur when tanned.
The weasels of UnReal World seem to have relatively low speed and endurance, and a character proficient in Tracking (especially with pair of skis and snowy landscape) should be able to keep on a fleeing weasel's heels until it is exhausted. It is then easy to use only Blunt attacks for the kill, helping to prevent damage to the delicate pelt.