Great Migrations

Migrations are ticking clocks: animals must move or die, driven by changing seasons and climates. They race to reach their destinations before it's too late to breed, feed or simply stay alive.

Every migration is an epic journey, driven largely by hunger. Every day, trillions of creatures, from microscopic plankton to rare desert elephants face arduous journeys in search of greener pastures.

Every day, millions of creatures are born into a life on the march, on the wing, on the run. From the tiniest butterflies to the largest wildebeest, these migrants lives hinge on the ability to get up and go.