User blog comment:John Alfred Hammond, CEO/Where would you create Jurassic Park?/@comment-1791057-20130815211524/@comment-3213993-20130819021609

Warm-bloodedness is not a magic barrier against cold. Lions and tigers are warm-blooded, but could they survive in Antarctica? Ponies were brought on one of the first Antarctic expeditions, and they died off from the cold.

But ferns can survive in New Zealand, which does get cold at certain times of the year.