User blog comment:Lightning the Skrill/Snow Wraith thermal vision gone wrong!/@comment-5690373-20150927215452

I agree on almost everything, except on the Groncicle, Bewilderbeast and Woolly Howl part. If dragons are warm-blooded, then those dragons are probably adapted to the cold, meaning their body temperature doesn't drop so easily. Polar bears or emperor penguins, for example, are animals that live in the coldest regions of the planet and have body temperatures of 37ºC and 39ºC respectively. Polar bears can keep that temperature even when the environment is -37ºC. If dragons are cold-blooded then you do have a point.