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Unknown, they're never referenced in any other material ThatsNotCanon 09:30, May 17, 2012 (UTC)

It isn't confirmed or known. My theory is that the Gorons pushed the Mogma to extinction after the Gorons took over Death Mountain, or the Mogmas may have migrated to a different land and/or evolved into another race. Example: They could have migrated to the land of "New Hyrule" (Spirit Tracks) and eventually evolved into the Anouki. Timelinesplitter 17:53, May 17, 2012 (UTC)