How Did Whales Evolve From Land Mammals?
Season 51
Episode 1
About the Episode
The oceans are thought to be where life started but about 50-million years ago, something incredible happened: some mammals found their way back into the water.
Aired:
| Expires: | Runtime: 3m 08s
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Extras
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NOVA Universe Revealed: Big Bang Preview
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No one predicted that planets like this were even possible.3:07 -
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Learn more about the COVID pandemic in Mexico.7:42 -
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How your immune system is primed may impact your long-term immunity.8:43 -
