1. She changed her name from Dora because she didn't want to be "compared to an icon of a childish show". Many have no idea what she's talking about.
2. Her fur used to be light gray, but then snow started sticking to her pelt. Somehow, the snow never melts and her back gets whiter every winter.
3. She is often seen as cold, mainly due to her pelt. She is actually pretty friendly.