Board Thread:Monster Discussions/@comment-3148673-20140525021457/@comment-24981691-20140602185720

i belive that they were terrestrial because the could just walk,

-MUTO, Massive Unidentified Terrestrial Organism althow is not terrestrial anymore...

Muto apears to have an internal skeleton (im not realy shure) but if you see it´s mouth it has teeth wich indicates that it has an internal skull so it may be posible that he is a vertebrated Kaiju, or at least with an internal skeleton so the category of insect would´t be the most acurate.