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- 1Far East AsiaJanuary 2, 2021
- 2ArabiaJanuary 9, 2021
- 3Earth's Coldest PlacesJanuary 16, 2021
- 4Biggest BeastsJanuary 23, 2021
- 5South AsiaJanuary 30, 2021
- 6EgyptFebruary 6, 2021
- 7Smallest SpeciesFebruary 13, 2021
- 8Coral ReefsFebruary 20, 2021
- 9MadagascarFebruary 27, 2021
- 10RussiaApril 3, 2021
- 11Feathered FriendsApril 3, 2021
- 12Highest PeaksApril 10, 2021
- 13TurkeyApril 10, 2021
- 14East AsiaApril 17, 2021
- 15UnderwaterApril 17, 2021
- 16Famous FurApril 24, 2021
- 17Arabian PeninsulaApril 24, 2021
- 18The Wild EastMay 1, 2021
- 19MonkeysMay 1, 2021
- 20FamiliesJune 12, 2021
- 21Egyptian AdventureJune 12, 2021
- 22The Eighth ContinentJune 19, 2021
- 23Water-Loving MammalsJune 19, 2021
- 24Sandy EcosystemsJune 26, 2021
- 25Return to RussiaJune 26, 2021
- 26HungriestJuly 3, 2021
- 27Five-Fingered FriendsJuly 3, 2021
- 28South AmericaJuly 10, 2021
- 29African AdventuresJuly 10, 2021
- 30Away in AsiaJuly 17, 2021
- 31RiversJuly 17, 2021
- 32OceansJuly 24, 2021
- 33A Plant-astic JourneyJuly 24, 2021
- 34Flippered FriendsAugust 21, 2021
- 35IslandsAugust 21, 2021
- 36SnowAugust 28, 2021
- 37Cats Around the WorldAugust 28, 2021
- 38Underwater GiantsSeptember 4, 2021
- 39BearsSeptember 4, 2021
- 40ElephantsSeptember 11, 2021
- 41Tree LoversSeptember 11, 2021
- 42ReptilesSeptember 18, 2021
- 43Hard HomesSeptember 18, 2021
- 44MammalsSeptember 25, 2021