Marc made some sixty prints in woodcut and lithography. Most of his mature work portrays animals, usually in natural settings. His work is characterized by bright primary color, an almost cubist portrayal of animals, stark simplicity and a profound sense of emotion. Even in his own time, his work attracted notice in influential circles. Marc gave an emotional meaning or purpose to the colors he used in his work: blue was used to portray masculinity and spirituality, yellow represented feminine joy, and red encased the sound of violence. After the National Socialists took power, they suppressed modern art; in 1936 and 1937, the Nazis condemned the late Marc as an entarteter Künstler (degenerate artist) and ordered approximately 130 of his works removed from exhibition in German museums. His painting Landscape With Horses was discovered in 2012 along with more than a thousand other paintings, in the Munich apartment of Cornelius Gurlitt whose dealer father, Hildebrand Gurlitt, was a collector of Modernist art the Nazis called "degenerate".