The 100 trillion ants in the world weigh as much as all the people on Earth and have colonized the planet like no other animal. Chris Packham explores the ingenious ways in which ants have collaborated to achieve their global success-natural air-conditioning systems keep ants cool in their nests, shelters made from their own bodies protect nomadic ants from the elements, and a sense of smell five times more powerful than other insects allows them to overpower animals hundreds of times larger than themselves. Remarkably, new research reveals how ant colonies are capable of immunizing themselves against diseases.

Originally released by BBC Worldwide Ltd, 2014. Streaming video file encoded with permission for digital streaming by Infobase on June 03, 2015.

Introduction: Ants --(2:02) -- Selecting a Queen -- (4:23) -- Underground Oxygen Supply -- (2:45) -- Living Ant Bivouac -- (2:48) -- Army Ant Pheromone Trail -- (3:07) -- Voracious Army Ants -- (2:08) -- Sacrificial Honey Ants -- (1:15) -- Composting Leaf-cutter Ants -- (2:03) -- Ant and Aphid Symbiosis -- (1:17) -- Ant Brain Fungus -- (2:33) -- Honey Ant: Disease Prevention -- (2:56) -- Credits: Ants -- (0:31).