The Best Episodes of Round Planet

Artic creatures aren't bothered by the cold. Rather, they fear the warmth caused by human activity that is setting the 'Earth's freezer' to 'defrost'.

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Penguins, "the natural world's answer to Charlie Chaplin," only have to waddle about to make children -- and Amstrong Wedgewood -- smile.

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The great apes, not to be confused with monkeys, have opposable thumbs, complex social politics and other "phenomenally humanlike" qualities.

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Many of the flora and fauna of Madagascar are found nowhere else on Earth, which is why the island isn't called "Normal-a-gascar."

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In forests, the perfect combination of sunlight and rain "makes trees grow like billy-o." Among these trees, an entire world springs into being.

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Serene as it seems, Yellowstone National Park is more unpredictable than an atom of Radium-226, thanks to the active super volcano below it.

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Armstrong narrates a focus on bears, the largest land predators on Earth which, surprisingly, forage for some of the smallest meals available.

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Life on islands evolves in isolation from the wider world, and in a manner that is "absolutely potty." Much of this life is weird and wonderful.

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The wildebeest, one of the many species of ungulates and "cud munchers" that populate the Serengeti, take part in a grand migration every year.

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Most of Earth's animals live in the sea, where they form a "living soup" or a "massive death chowder" in which it's eat or be eaten.

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