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Marvel's first mutant was Namor the Sub-Mariner, first appearing in 1939. Today, there are hundreds of mutants, both heroes and villains, appearing in many of the dozens of comics published every month.
mutant
noun
an animal or plant with inheritable [capable of being passed down from parent to child] characteristics that differ from those of the parents
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Marvel

© Sohrab Rezvan-Mojarrad 1999 - 2002
I have not created any of the Superheroes listed on this web site; all Superheroes are property of their respective companies. All of the Superhero descriptions used on this site were obtained from various sources (including trading cards and comic books), and are therefore also property of their respective companies. The definitions were obtained from dictionaries and all images are property of the company printed on the images.