Synopsis

The Earth hosts remarkable assemblies of life, creatures that converge in numbers too vast to fathom – sometimes reaching millions, billions, even trillions. Consider the gatherings of bats and bees, the swarms of locusts and ants, the monarch butterflies of Mexico, the periodic emergence of seventeen-year cicadas, the grunion of the Sea of Cortez, and the carp of the Mississippi River; the sardine runs off the coast of South Africa, the superflocks of parakeets in the Australian Outback, the ma