Comportamento defensivo (IMAGE) Champalimaud Centre for the Unknown Caption Uma mãe rato a aconchegar as suas crias face a um perigo iminente Credit Shira Lottem/ Champalimaud Centre for the Unknown Usage Restrictions attribute authorship License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.