Board Thread:Monster Discussions/@comment-27637441-20160119233502/@comment-7622429-20190215014105

I hope this necro isn't against site policy.

It could be that, as a 1st-generation mutation, Zilla Sr. had an imperfect genetic disposition. Meanwhile, his son, Zilla Jr., was born a mutation and thus could fully realie the genetic alterations.

Not sure how that explains the other mutations that are said to be the first of their kind, though.