From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

The mayfly is born, lives through middle-age, and then dies. All in the same day.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

The mayfly is born, lives through middle-age, and then dies. All in the same day.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

A tragic and violent scene plays out as wildebeest herds attempt to cross a river teeming with crocs.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

Elephant seal bulls fight for the title of beachmaster — and control of all the harems on the beach.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

Mother bats prepare for migration by giving their youngsters as much milk as they can manage and oiling up their wings.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

Whale sharks gracefully gobble down the fish eggs released in a timely spawn.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

Witness the lifecycle of a monarch butterfly - from egg to pupa to adult.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

After gorging on eucalyptus leaves, these bats begin their long courtship in the trees.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

Elephant seal bulls only leave their females alone long enough for them to give brith to super cute pups — then its back to work.

From: National Geographic Channel on Fri, Sep 03 2010 4:12 AM

Great whites go where the meal goes - and today that meal is elephant seal.

From: National Geographic Channel on Tue, Aug 31 2010 12:07 AM

Monarch butterflies descend from branches to the forest floor in order to mate and begin their migration north.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

A zebra foal and his father catch up with the herd on its way back to the rich green lands of the delta.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

The final leg of the Monarch’s journey is studded by the threatening hungry mouths of praying mantises.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

A zebra foal’s mother falls prey to the harsh conditions of her journey — will the foal leave his dead mother's side?

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

Thousands of zebra herds join together to begin their arduous journey out of the delta and into the Salt Pans.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

The male kobs race to their breeding grounds in order to begin the violent battle for the right to mate.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

The male kobs race to their breeding grounds in order to begin the violent battle for the right to mate.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

After a long journey, kobs begin their mating rituals - using their urine as love letters.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

Species upon species converge in the Falkland Islands to end their migratory journeys in mating and birth.

From: National Geographic Channel on Tue, Aug 31 2010 12:06 AM

The competition for mates among these antelope is so fierce that many males die while fighting.