When the delta tides fall leaving just mud behind, mudskippers fill their cheeks with water giving them the ability to survive on land. This allows them to eat the nutritious debris left behind by the water.

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Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thoughtprovoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this.

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