The first group were females who had witnessed a predator attack and lost someone in that attack, and the second group were females who had witnessed an attack but had not lost someone.
المجموعة الأولى كانت إناثًا شهدن هجومًا لأحد المفترسات وفقدن إحداهن في هذا الهجوم، والمجموعة الثانية لإناث شهدن هجومًا ولكن لم يمت أحد فيه.