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Time-travelling zoologist Nigel Marven continues his CGI enhanced journey through the prehistoric marine world. A visit to the Pliocene era provides an encounter with a giant shark called a Megalodon.

In the second programme of this trilogy, time-travelling zoologist Nigel Marven continues his CGI enhanced journey through the prehistoric marine world. A visit to the Pliocene era provides an encounter with a giant shark called a Megalodon, whilst in the Eocene he is in search of an ancestral whale.

30 minutes

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