Talk:Ogra/@comment-26155014-20160720100449/@comment-998602-20180707185324

Apparently (according to waht I've read in the comics) they're from a 'Hollow Earth' and came to the surface at the beginning of the film thanks to an underwater volcanic eruption.

As such, they're probably closely related to dinosaurs but have evolved a lot more in the 65 million years since the dinosaur's extinction.