In this video, Xóchitl Flores-Marcial discusses the use of skulls in El Árbol de la Muerte, contrasting them with the expressive, joyful skulls typical in Día de los Muertos celebrations. Here, the skulls are expressionless, reflecting a somber tone rather than celebration. She explains how skulls remain important symbolic elements in both traditional altars and contemporary art, though their meanings shift depending on context.