Mammoth is an Australian super-villain with great strength and diminutive intellect. His sister Shimmer has the ability to transmute elements. Together they are enemies of the Teen Titans. He has been a member of the Fearsome Five, the Injustice League, H.I.V.E. and the Secret Society of Super-Villains. Mammoth was created by Marv Wolfman and George Perez, first appearing in New Teen Titans #3. (1981)

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