Si a los animales para experimentación se les elige, ¿qué los hace diferentes de otros animales?

Si no tuvieran que trabajar, raúl y dolores no todos los días. a las seis y cuarto

What are the people in the picture doing?

Write about the history of the chilean currency in spanish. mention the names of various individuals who, over the past few decades, were honored by having their portraits included on the currency.