Salty sea

Chris Packham explains why the sea is 220 times saltier than freshwater and how marine animals cope.

Release date: 21 Oct 2010

over a year left to watch

2 minutes

Credits

Role Contributor
Series ProducerRoger Webb
PresenterChris Packham
PresenterKate Humble
PresenterMartin Hughes-Games
PresenterChris Watson
Executive ProducerTim Scoones

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