Aired: Sep 12, 2001The next episode delves into the awe-inspiring magnitude of the Blue Planet, ...


The precarious balance between plenty and danger in tidal marsh ecosystems is revealed, where animals must constantly navigate the availability of food and the ever-present threat of predators to survive.
Streaming in:
United Kingdom
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At the present time, viewers have the opportunity to enjoy "The Blue Planet" completely free of charge, though with occasional advertisements, on the following streaming platforms: BBC iPlayer. Additionally, viewers have the option to either rent or purchase "The Blue Planet" on the following digital platforms: AppleTV, Amazon, Google Play.