User blog comment:Aandrew07/Discussion of the Week: Subspecies/@comment-4212769-20121020191514/@comment-4212769-20121025145707

Evolution doesn't work like that...

The ancestor of both Agnaktors probably was a water-dwelling monster living in the sea. One part of the population probably adapted to live on a volcano island first and slowly going deeper into the Volcano and learned to swim in lava and endure lava.

But in the same time another part of the population slowly got in colder water adapting to it to finally get to land and become a land-dwelling monster. As most of the land is frozen it needed to adapt to burrow through the ice so it has an advantage as predator.

In the end both are here as subspecies. It's just another adaption and evolutionary path. The Agnaktor Subspecies probably was never in his evolution adapted to lava the same the normal was never adapted to ice.