Ultimate Animal Countdown T1 - Ep. 3

Animals find strength in numbers: swarms of hundreds, thousands, millions, and billions. Whether creatures are feeding or fighting, moving or mating, the results are the same: it pays not to mess with the mob. From ferocious dinner parties to plagues of Biblical proportion, we're counting down the top ten ultimate swarms in the natural world to discover that sometimes size really does matter. This is global swarming…gone wild.