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Vaccines: Calling the Shots

Vaccines: Calling the Shots

NOVA

Examine the science behind vaccinations, the return of preventable diseases and the risks of opting out.

60 min.

Australia's First 4 Billion Years: Strange Creatures

Australia's First 4 Billion Years: Strange Creatures

NOVA

After a massive extinction, diverse marsupials came to dominate this isolated continent.

60 min.

Australia's First 4 Billion Years: Life Explodes

Australia's First 4 Billion Years: Life Explodes

NOVA

Part 2 of 4. The move of life from ocean to land.

60 min.