Beast is a fictional character appearing in American comic books published by Marvel Comics and is a founding member of the X-Men. The character was introduced as a mutant possessing ape-like superhuman physical strength and agility, oversized hands and feet, a genius-level intellect, and otherwise normal appearance and speech. Eventually being referred to simply as "Beast", Dr. Henry Philip "Hank" McCoy underwent progressive physiological transformations, gaining animalistic physical characteristics. These include blue fur, both simian and feline facial features, pointed ears, fangs, and claws. Beast's physical strength and senses increased to even greater levels.