Emmanuel Priou

March of the Penguins -- In the Antarctic, every March since the beginning of time, the quest begins to find the perfect mate and start a family.

In the Antarctic, every March since the beginning of time, the quest begins to find the perfect mate and start a family. This courtship will begin with a long journey - a journey that will take them hundreds of miles across the continent by foot, in freezing cold temperatures, in brittle, icy winds and through deep, treacherous waters. They will risk starvation and attack by dangerous predators, under the harshest conditions on earth, all to find true love.

In the Antarctic, every March emperor penguins embark on a quest to find the perfect mate and start a family. They will risk starvation, attack by dangerous predators and endure the harshest conditions on earth, all to find true love.

A look at the annual journey of Emperor penguins as they march -- single file -- to their traditional breeding ground.