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Languages : en
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Book Description
For billions of years, life existed only in the Earth's oceans. But about 350 million years ago, some of those earliest life forms began to explore 'New Frontiers' on land. They could breath oxygen from the air and were able to support their weight on land. And over the next hundred million years, these life forms would spread across the globe. This episode recreates the remarkable adaptation of these animals that first came ashore and reveals the fascinating theories of how and why they did.