According to a 2013 NOAA report, "the Taimyr reindeer herd, a migrating tundra reindeer (R.t. sibiricus), is the largest reindeer herd in the world" [1] [Link 1]
2
Pacific walrus
Odobenus rosmarus divergens
VU
Novoye Chaplino, Chukotka Autonomous Okrug, Russia
The credits list the "Novoe Chaplino Hunters Collective" (the hunters featured), which strongly suggests this sequence was filmed in this particular village in the Chukotka region.
3
Thick-billed murre
Uria lomvia heckeri
LC
Novoye Chaplino, Chukotka Autonomous Okrug, Russia
The credits list the "Novoe Chaplino Hunters Collective" (the hunters featured), which strongly suggests this sequence was filmed in this particular village in the Chukotka region. The subspecies is based on the location in the Chukchi Peninsula, as per IOC Bird List.
4
Siberian tundra reindeer
Rangifer tarandus sibiricus
VU
Novoye Chaplino, Chukotka Autonomous Okrug, Russia
The credits list the "Novoe Chaplino Hunters Collective" (the hunters featured), which strongly suggests this sequence was filmed in this particular village in the Chukotka region.
5
Domestic dog
Canis lupus familiaris
DO
Greenland
6
Humpback whale
Megaptera novaeangliae
LC
Antarctica
These shots are re-used from the first episode "To the Ends of the Earth". A few re-used shots of Antarctic minke whales and killer whales also appear, but given these don't constitute a brand new sequence, I opted to record only the humpback, which is shown first.
7
Emperor penguin
Aptenodytes forsteri
NT
Snow Hill Island, Antarctica
The credits list Quark Expeditions, a provider of Antarctic tourism. In one shot, we can even see one of their icebreaker ships, the Kapitan Khlebnikov. Quark Expeditions conducts emperor penguin tours to Snow Hill Island.