A zebra foal and his father catch up with the herd on its way back to the rich green lands of the delta.
(01:43)The mayfly is born, lives through middle-age, and then dies. All in the same day.
(02:41)Crew member talks about the plane they used to capture monarchs in flight.
(02:18)Producer Stephanie explains monarchs and milkweed as she looks for milkweed in a field.
(01:47)Cameramen chase down the monarchs flying around a field.
(01:00)Migration Ecologist tests the first test ever of an electronic tag on a monarch butterfly.
(02:57)After mating in the forest, red crab females descend down tall cliffs into the sea where they release their eggs.
(02:58)Producer talks about filming crabs while on locations.
(02:17)A tragic and violent scene plays out as wildebeest herds attempt to cross a river teeming with crocs.
(02:59)Young cheetahs wait for newborn wildebeests, stalking them before the wildebeests begin their migration.
(02:56)As the herd trudges through the Serengeti, some young wildebeests simply cannot survive the scorching journey.
(02:56)Cameraman Benam describes having to film a wildebeest calf and his bleating mother lose a battle against a croc.
(02:54)Poole describes shooting WB from a hot air balloon.
(01:56)Poole finds a WB stuck in the river - and it dies sadly.
(03:19)Cameraman Bob Poole could only watch as a wildebeest became stuck in the river and drowned.
(01:38)Cameraman Benam describes having to film a wildebeest calf being eaten by a crocodile.
(02:48)Discover how mathematical patterns unlock the key to wildebeest survival and migration.
(02:59)After gorging on eucalyptus leaves, these bats begin their long courtship in the trees.
(02:54)Mother bats prepare for migration, giving their young as much milk as they can and oiling up their wings.
(02:55)The competition for mates among these antelope is so fierce that many males die while fighting.
(01:23)