Board Thread:General Discussions/@comment-31524712-20170319210335/@comment-24979451-20170414212839

I would only consider animals larger than normal which aren't fictional animals as a kaiju if they've become bigger than their real size because of a mutation caused by radiation or because of an experiment gone wrong, as animals like these are meant to be monsters by the filmmakers. And I would consider fictional prehistoric animals as kaiju, too.