200 million years ago, our planet looked very different from it does today. It was (entire) covered by sea, which surrounded one single super-continent called Pangea. Then Pangea began to break up, and life was cast adrift(随波逐流)on fragments(碎片)of land. And these fragments eventually (become) our seven continents.
We will see how life developed on each continent, (give) rise to the extraordinary and wonderful diversity that we see today. We'll explore the remote reaches of Asia, home to rarely (see) creatures. We will adventure to the frozen land of Antarctica, life finds its way against the challenges. And to the riches of South America, full of the unexpected. And Europe, a world transformed by human beings.
And we'll discover how this may be the most significant moment for life on earth the continents formed. We are changing the world so rapidly that wildlife now (face) some of its greatest challenges yet. Never has it been a important time to reveal the precious diversity of life on our seven continents.
