2008, Samantha Baskind, Ranen Omer-Sherman, The Jewish graphic novel: critical approaches, illustrated edition, Rutgers University Press, ISBN 9780813543673, page 158:
The abilities that mutation bestows are not in themselves good or evil, yet having powers is synonymous with taking power, for many humans—a connection that does in fact reflect more about human than about mutant behavior.
They found a perfect means to tell the story in the character of Rogue (Anna Paquin), a mutant whose very touch is deadly.
2006, Chris Claremont, X-men The Last Stand, volume 3, Random House Publishing Group, ISBN 9780345492111:
In the midst of an uneasy peace between humans and mutants, a human scientist discovers a cure that can transform mutants back into humans, [...]
2009, William Irwin, Rebecca Housel, Jeremy Wisnewski, X-Men and philosophy: astonishing insight and uncanny argument in the mutant X-verse, John Wiley and Sons, ISBN 9780470413401, page 103:
Magneto claims in the first X-Men movie that mutants are the future of humanity. his statements suggest that mutants are a subspecies of humans, Homo superior, a recent step on the evolutionary ladder.
2009, William Irwin, Rebecca Housel, Jeremy Wisnewski, X-Men and philosophy: astonishing insight and uncanny argument in the mutant X-verse, John Wiley and Sons, ISBN 9780470413401, page 232:
Rogue's mutation is unique. She is in effect a universal mutant, capable of taking on the mutant power of any other mutant by simply coming into physical contact with that person.
2010, William Irwin, David Kyle Johnson, Introducing Philosophy Through Pop Culture: From Socrates to South Park, Hume to House, John Wiley and Sons, ISBN 9781444334531, page 282:
X-Men: The Last Stand explains mutant powers as coming from one single gene, called the mutant X-Gene. Every mutant has it, and it somehow causes his or her powers, [...]