Extraordinary photograph reveals the incredible collective intelligence behind these invasions. Swarm intelligence is a remarkable form of mass animal thought, and their success depends on it. Millions of free-tailed bats form a living tornado which complex information is exchanged. Huge shape-shifting shoals of herring use swarm intelligence to detect predators. Billions of alkali flies form a rolling wave to evade the gaping mouths of gulls. Vast numbers of shore birds synchronise their migration with swarming horseshoe crabs, a feat of timing unparallelled in the animal world. Fire ants invade and destroy computer equipment and, when their nest flooded, create living raft with their bodies. Inside a driver ants nest, we discover the inner workings of a brain made from thousands of individuals. One swarm is even helping to save the planet from the Greenhouse Effect. incredible images show the true complexity of the swarm and how their intelligence impact on our world.