When Whales Walked: Journeys in Deep Time

Crocodile Ancestors

Clip | 2m 59s | Video has closed captioning.

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.

Aired: 06/19/19

Rating: TV-PG

Problems Playing Video? | Closed Captioning

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