User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4212769-20120309101156/@comment-4212769-20120309170831

You're right but they are bigger than most other animals of the same class. For example the biggest shark lives most of its life in cold waters but only when they mate they travel into warmer areas. Another thing is that animals living in cold waters have a longer lifespan than other. Example is the Greenland shark you mentioned. It can live 200 years and longer equal the Greenland whale. But they grow slower than other animals but through their long lives they get bigger.