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When Whales Walked: Journeys in Deep Time

Crocodile Ancestors

2m 59s

Scientists are now discovering the earliest ancient crocodiles by tracing one branch of the vast tree of life 230 million years into the geologic period called the Triassic. And they looked nothing like the crocs alive today.

A Shining Red Production in association with Twin Cities Public Television, Inc.
Extras
Watch • 0:30
When Whales Walked: Journeys in Deep Time
When Whales Walked: Journeys in Deep Time | Preview
Discover the evolutionary secrets of some of the world’s most majestic creatures.
Preview: S1 E1 | 0:30
Watch • 2:10
When Whales Walked: Journeys in Deep Time
When Whales Walked: Journeys in Deep Time | Teaser
Discover the evolutionary secrets of some of the world’s most majestic creatures.
Clip: S1 E1 | 2:10
Watch • 2:10
When Whales Walked: Journeys in Deep Time
When Whales Walked: Journeys in Deep Time Intro
Discover the evolutionary secrets of some of the world’s most majestic creatures.
Preview: S1 E1 | 2:10
Watch • 2:21
When Whales Walked: Journeys in Deep Time
When Whales Walked: Journeys in Deep Time | Trailer
Discover the evolutionary secrets of some of the world’s most majestic creatures.
Preview: S1 E1 | 2:21
Watch • 4:33
When Whales Walked: Journeys in Deep Time
Birds Are Living Dinosaurs
Birds have colonized every environment on Earth, so how did they come to be so diverse?
Clip: 4:33
Watch • 4:46
When Whales Walked: Journeys in Deep Time
Empire of Elephants
Today there are three species of elephant, but 16 million years ago there were dozens.
Clip: 4:46
Watch • 3:12
When Whales Walked: Journeys in Deep Time
Walking Whale Ancestor
Blue whales are the biggest creatures ever. But how did they get so big?
Clip: 3:12
Latest Episodes
Watch • 1:54:37
When Whales Walked: Journeys in Deep Time
When Whales Walked: Journeys in Deep Time
Discover the evolutionary secrets of some of the world’s most majestic creatures.
Episode: S1 E1 | 1:54:37