Ariel Myren was enjoying a day out at the National Zoo in Washington DC when she spotted a friendly sea lion who seemed to be following and playing with a little girl. But when the little girl fell, the sea lion stopped play-acting and appeared to show concern for the girl, staring at her as she lay on the floor. We cannot advise as to whether sea lions feel genuine empathy for humans. Credit: YouTube/Ariel Myren Credit: YouTube/Ariel Myren