They are a pair of Spanish-speaking twins from Guatemala who can move at super speed, but only when they are in contact with each other. In "Titans East", Aqualad states that their other power is to talk only in Spanish. Their battle cry is "¡Más o Menos, sí podemos!" which translates as, "Plus or Minus, yes we can!". It seems that they are partially based on the Maya Hero Twins Hunahpu and Xbalanque depicted in the Popol Vuh chronicles; however, since their incorporation into the mainstream DC Universe, their origins and history have not been dealt with.