S1.E1 ∙ Arctic Sun, May 15, 2016 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'. 7.7 /10
S1.E2 ∙ Yellowstone Mon, Jun 20, 2016 Serene as it seems, Yellowstone National Park is more unpredictable than an atom of Radium -226, thanks to the active super volcano below it. 6.8 /10
S1.E3 ∙ Oceans Tue, Jun 21, 2016 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. 6.5 /10
S1.E4 ∙ Wildebeest Wed, Jun 22, 2016 The wildebeest, one of the many species of ungulates and "cud munchers" that populate the Serengeti, take part in a grand migration every year. 6.6 /10
S1.E5 ∙ Madagascar Thu, Jun 23, 2016 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." 6.9 /10
S1.E6 ∙ Penguins Sun, Jun 26, 2016 Penguins, "the natural world's answer to Charlie Chaplin," only have to waddle about to make children -- and Amstrong Wedgewood -- smile. 7.2 /10
S1.E7 ∙ Islands Mon, Jun 27, 2016 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. 6.7 /10
S1.E8 ∙ Great Apes Tue, Jun 28, 2016 The great apes, not to be confused with monkeys, have opposable thumbs, complex social politics and other "phenomenally humanlike" qualities. 7 /10
S1.E9 ∙ Forests Wed, Jun 29, 2016 In forests, the perfect combination of sunlight and rain "makes trees grow like billy-o." Among these trees, an entire world springs into being. 6.9 /10
S1.E10 ∙ Bears Thu, Jun 30, 2016 Armstrong narrates a focus on bears, the largest land predators on Earth which, surprisingly, forage for some of the smallest meals available. 6.8 /10