Malthus for kids: The impact of exploring Malthus’ principle on elementary school students’ understanding of evolution by natural selection - Xana Sá-Pinto; Alexandre Pinto; Joana Ribeiro; Inês Sarmento; Pessoa, Patrícia; Rodrigues, Leonor; Vázquez-Ben, Lucía; Evangelia Mavrikaki; Joaquim Bernardino Lopes (Authorea Preprints, 2021)