3: Army Ants

Catch up with a roving band of elusive "army ants," check out the enormous nest they make with their own bodies, and witness their feeding frenzy as the ferocious swarm storms the science station. This is the third installment in a series of video journals by Dr. Corrie Moreau and her team documenting their 2012 expedition to catalog and study ant diversity in Costa Rica's Guanacaste region.