Original: The name army ant ( or legionary ant or '' Marabunta '' also known as '' morabigbug '' ) is applied to over 200 ant species , in different lineages , due to their aggressive predatory foraging groups , known as '' raids '' , in which huge numbers of ants forage simultaneously over a certain area , attacking prey en masse .
Simplified: Army ant ( or legionary ant or '' Marabunta '' ) means over 200 ant species . They are called army ants due to their aggressive predatory groups looking for food , known as '' raids '' , in which many ants look for food at the same time in one place , attacking other animals en masse .