Explore Episodes

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Plants

Plants face the same central challenge in life as animals — they strive to live long enough to reproduce

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Creatures of the Deep

The animals without backbones range from some of the most primitive to the most intelligent

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Hunters and Hunted

Mammals' intelligence allows them to learn from past experience and develop novel solutions to problems

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Insects

There are thought to be 200 million individual insects for every one of us

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Birds

Birds feathers allow them to solve life's challenges in radically different ways

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Fish

Fish are the most varied and diverse back-boned creatures on the planet — and they need to be

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Mammals

Mammals' success lies in more than just the unique physical traits of fat, fur, and warm blood

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Reptiles and Amphibians

Reptiles and amphibians overcome their shortcomings through extraordinary tricks and strategies

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Challenges of Life

Everywhere you look, there are living things go to to stay alive