Even more remarkably though, the fact that 15 month-olds didn't do this suggests that these 18 month-olds had learned this deep, profound fact about human nature in the three months from when they were 15 months old.
Más sorprendente aún, es el hecho que los niños de 15 meses no hicieran esto, y esto sugiere que los bebés de 18 meses han aprendido este hecho profundo de la naturaleza humana, a partir de los 15 meses.