WEBVTT 00:00:00.000 --> 00:00:02.960 Okay, so let's just jump right in. We are headed 00:00:02.960 --> 00:00:06.000 way, way north today for this deep dive. We're 00:00:06.000 --> 00:00:08.539 looking at one of the world's truly massive yet 00:00:08.539 --> 00:00:12.279 somehow often overlooked landmasses, Victoria 00:00:12.279 --> 00:00:15.810 Island. The moment you actually grasp the sheer 00:00:15.810 --> 00:00:18.710 scale of this place, it just completely resets 00:00:18.710 --> 00:00:21.050 your idea of what a remote island can even be. 00:00:21.250 --> 00:00:23.190 It absolutely does. I mean, this isn't just a 00:00:23.190 --> 00:00:24.750 big island. We're talking about the eighth largest 00:00:24.750 --> 00:00:28.109 island in the entire world. For context, Victoria 00:00:28.109 --> 00:00:30.789 Island is Canada's second largest island, and 00:00:30.789 --> 00:00:35.710 it covers an enormous 217 ,291 square kilometers. 00:00:35.950 --> 00:00:37.990 And here's where that context really hits you, 00:00:38.009 --> 00:00:40.509 to give you a mental picture of that size. Victoria 00:00:40.509 --> 00:00:42.649 Island is significantly larger than the entire 00:00:42.649 --> 00:00:44.359 land. landmass of Great Britain. Right, which 00:00:44.359 --> 00:00:46.939 is only about 209 ,000 square kilometers. Exactly. 00:00:46.960 --> 00:00:49.520 So imagine fitting all of England, Scotland, 00:00:49.539 --> 00:00:52.659 and Wales inside one single Canadian Arctic island. 00:00:52.899 --> 00:00:55.560 That is just, it's immense. Yeah, and this colossal 00:00:55.560 --> 00:00:57.920 landmass, it doesn't even have a single administrative 00:00:57.920 --> 00:01:00.820 identity. It's sort of a geographical split personality. 00:01:00.979 --> 00:01:02.979 It actually straddles the boundary between the 00:01:02.979 --> 00:01:05.340 Northwest Territories, where the Western Third 00:01:05.340 --> 00:01:08.079 is in the Inuvik region, and Nunavut, where the 00:01:08.079 --> 00:01:09.980 bigger eastern part is in the Kidikmeat region. 00:01:10.349 --> 00:01:12.489 So our mission today is to cut through all of 00:01:12.489 --> 00:01:14.569 that and deliver the essential details about 00:01:14.569 --> 00:01:17.629 this gigantic Arctic landmass specifically for 00:01:17.629 --> 00:01:20.310 you. We'll get into everything from its curious 00:01:20.310 --> 00:01:25.049 and frankly bizarre geography to its unique ecological 00:01:25.049 --> 00:01:28.469 role and, well, the heavy international politics 00:01:28.469 --> 00:01:30.250 that surround it. We want to make sure you're 00:01:30.250 --> 00:01:32.329 well informed about a place most people couldn't 00:01:32.329 --> 00:01:34.890 even point to on a map. We'll explore the history 00:01:34.890 --> 00:01:37.390 of the people who call it home, the explorers 00:01:37.390 --> 00:01:39.430 who struggled just to map its edges. And you 00:01:39.430 --> 00:01:42.590 mentioned something bizarre. Oh, yeah. If you 00:01:42.590 --> 00:01:45.329 want one fact that just defies logic right now, 00:01:45.430 --> 00:01:47.909 the complexity of Victoria Island's coastline 00:01:47.909 --> 00:01:50.390 and its internal lakes results in a geographic 00:01:50.390 --> 00:01:53.109 feature that is the world's largest island within 00:01:53.109 --> 00:01:56.409 an island within an island. Whoa. We will definitely 00:01:56.409 --> 00:01:58.390 break down that dizzying puzzle when we get to 00:01:58.390 --> 00:02:00.870 the geography section. Okay, that's the kind 00:02:00.870 --> 00:02:02.930 of Russian doll geography that just melts my 00:02:02.930 --> 00:02:05.590 brain. But before we get lost in all those map 00:02:05.590 --> 00:02:08.550 layers, let's start with identity. The history. 00:02:09.180 --> 00:02:12.479 the people, and how such a vast territory got 00:02:12.479 --> 00:02:14.659 its European name in the first place. Well, the 00:02:14.659 --> 00:02:16.740 naming is pretty typical of that 19th century 00:02:16.740 --> 00:02:19.099 British influence in the Arctic. The island is 00:02:19.099 --> 00:02:21.840 named after Queen Victoria, who was, you know, 00:02:21.860 --> 00:02:25.199 the Canadian sovereign from 1867 to 1901. And 00:02:25.199 --> 00:02:27.219 that's why you see other related names. Exactly. 00:02:27.280 --> 00:02:29.139 It's why you see major features across the island, 00:02:29.199 --> 00:02:32.520 like the huge Prince Albert Peninsula named after 00:02:32.520 --> 00:02:35.360 her consort. That historical colonial overlay 00:02:35.360 --> 00:02:37.939 is important for sure, but we have to talk about 00:02:37.939 --> 00:02:40.039 its indigenous identity. It's far older and it 00:02:40.039 --> 00:02:43.879 continues today. What is its name to the people 00:02:43.879 --> 00:02:47.159 who truly belong there? Absolutely. The Inuanactin 00:02:47.159 --> 00:02:50.259 name for the island is Kitlanek, and the local 00:02:50.259 --> 00:02:52.539 India population who trace their habitation back 00:02:52.539 --> 00:02:55.620 thousands of years, they're known as the Kitlanermiyat. 00:02:55.900 --> 00:02:58.099 Kit Lane or Mitch. Yeah. And they're often historically 00:02:58.099 --> 00:03:00.319 referred to as the copper idiot, which is a name 00:03:00.319 --> 00:03:02.039 that came from their traditional use of local 00:03:02.039 --> 00:03:04.889 copper deposits for tools. And the human presence 00:03:04.889 --> 00:03:06.990 here, I mean, relative to the size of the island, 00:03:07.090 --> 00:03:10.229 it's minuscule. Oh, unbelievably so. The 2021 00:03:10.229 --> 00:03:12.750 census recorded a total population of just 2 00:03:12.750 --> 00:03:16.009 ,168 residents. For an island bigger than Great 00:03:16.009 --> 00:03:19.030 Britain. Exactly. Yeah. And that population is 00:03:19.030 --> 00:03:21.789 almost entirely concentrated in two major settlements, 00:03:21.949 --> 00:03:24.409 which it reflects that administrative split we 00:03:24.409 --> 00:03:26.490 mentioned earlier. Right. So the vast majority 00:03:26.490 --> 00:03:30.210 of people, about 7 ,760 residents, they live 00:03:30.210 --> 00:03:33.650 in Cambridge Bay or Iqaluitutiaq. That's on the 00:03:33.650 --> 00:03:36.530 southeast coast, inside Nunavut. The smaller 00:03:36.530 --> 00:03:39.050 community, Ulukaktuk, with a population of 408, 00:03:39.250 --> 00:03:41.750 is on the far west coast in the Northwest Territories. 00:03:41.870 --> 00:03:43.969 It's fascinating that the entire existence on 00:03:43.969 --> 00:03:46.030 this massive island is basically centered around 00:03:46.030 --> 00:03:48.830 two small, isolated points. You also mentioned 00:03:48.830 --> 00:03:51.310 historical settlements, which that speaks to 00:03:51.310 --> 00:03:53.430 a time before these permanent communities took 00:03:53.430 --> 00:03:55.629 hold, right? Yes. Trading posts were key during 00:03:55.629 --> 00:03:57.569 the height of the fur trade and early exploration, 00:03:57.849 --> 00:04:00.560 but they were often temporary. Many were abandoned 00:04:00.560 --> 00:04:02.979 as conditions changed. Fort Collinson is a good 00:04:02.979 --> 00:04:05.360 example of an abandoned post. But the history 00:04:05.360 --> 00:04:07.719 of habitation goes much, much deeper than that. 00:04:07.860 --> 00:04:10.780 We're talking prehistory. We know the Thule culture, 00:04:10.979 --> 00:04:14.219 the ancestors of the modern Inuit, had a robust 00:04:14.219 --> 00:04:17.120 presence here. What kind of evidence do we have? 00:04:17.439 --> 00:04:19.160 Well, one of the most compelling pieces of evidence 00:04:19.160 --> 00:04:21.759 comes from the Wollaston Peninsula. Researchers 00:04:21.759 --> 00:04:25.459 there found five prehistoric kamutic. The sleds, 00:04:25.500 --> 00:04:27.959 right. The traditional sleds, exactly. And these 00:04:27.959 --> 00:04:30.000 weren't just fragments. They were well -preserved 00:04:30.000 --> 00:04:32.300 artifacts belonging to the Neo -Eskimo culture. 00:04:32.620 --> 00:04:35.220 And the dating on those tells a remarkable story 00:04:35.220 --> 00:04:37.240 about continuity, doesn't it? It really does. 00:04:37.399 --> 00:04:42.500 They date back to between 1250 and 1573 AD. This 00:04:42.500 --> 00:04:44.980 proves that copper Inuit ancestors were thriving 00:04:44.980 --> 00:04:47.860 on that land for centuries before any European 00:04:47.860 --> 00:04:50.550 had even sighted the coastline. That deep, sustained 00:04:50.550 --> 00:04:53.329 history contrasts so sharply with the way the 00:04:53.329 --> 00:04:55.829 Europeans approached the island. Let's shift 00:04:55.829 --> 00:04:58.110 into the age of exploration. It wasn't a single 00:04:58.110 --> 00:05:00.470 discovery, was it? Oh, absolutely not. It was 00:05:00.470 --> 00:05:04.209 a centuries -long, piece -by -piece puzzle, which 00:05:04.209 --> 00:05:06.810 really reflects how difficult it was to navigate 00:05:06.810 --> 00:05:09.329 the Arctic sea ice and chart these coastlines 00:05:09.329 --> 00:05:13.300 accurately. The first documented European sighting 00:05:13.300 --> 00:05:16.980 was in 1826 by John Richardson, who only saw 00:05:16.980 --> 00:05:19.620 the southwest coast and named his piece Wollaston 00:05:19.620 --> 00:05:22.579 Land. So right away, we have a name, but no idea 00:05:22.579 --> 00:05:24.600 it's connected to anything else. And that complexity 00:05:24.600 --> 00:05:26.920 just got deeper 13 years later. That's right. 00:05:27.060 --> 00:05:30.060 In 1839, Peter Warren Deese and Thomas Simpson 00:05:30.060 --> 00:05:32.699 charted the southeast coast, and they independently 00:05:32.699 --> 00:05:36.040 named their section Victoria Land. So by the 00:05:36.040 --> 00:05:37.839 mid -19th century, navigators thought they were 00:05:37.839 --> 00:05:40.360 looking at two separate places, Wollaston Land. 00:05:40.699 --> 00:05:43.240 and Victoria Land. I can just imagine the confusion 00:05:43.240 --> 00:05:45.339 on early nautical charts. What was the moment 00:05:45.339 --> 00:05:47.259 when those two lands were finally connected? 00:05:47.540 --> 00:05:50.019 That moment came in 1851, thanks to John Ray. 00:05:50.540 --> 00:05:53.139 Ray was a fantastic Arctic traveler, and he successfully 00:05:53.139 --> 00:05:56.160 charted the entire south coast. He proved conclusively 00:05:56.160 --> 00:05:58.399 that Wollaston land and Victoria land were connected, 00:05:58.560 --> 00:06:01.060 that they formed a single, massive island. Which 00:06:01.060 --> 00:06:03.379 must have been so essential for the search parties 00:06:03.379 --> 00:06:05.519 trying to find the lost Franklin expedition at 00:06:05.519 --> 00:06:08.459 the time. And speaking search efforts, Robert 00:06:08.459 --> 00:06:10.920 McClure played a huge role in charting the western 00:06:10.920 --> 00:06:13.319 side around that same time. McClure's voyage 00:06:13.319 --> 00:06:17.379 between 1850 and 1851 was instrumental. He managed 00:06:17.379 --> 00:06:19.819 to circumnavigate Banks Island. which is directly 00:06:19.819 --> 00:06:22.519 to the west, separating it definitively from 00:06:22.519 --> 00:06:25.339 Victoria Island. And crucially, his crew also 00:06:25.339 --> 00:06:27.860 charted the northwest and west coasts of Victoria 00:06:27.860 --> 00:06:31.000 Island itself, essentially outlining the entire 00:06:31.000 --> 00:06:34.560 western edge. So by 1851, we mostly know the 00:06:34.560 --> 00:06:37.100 shape, but the charting continued well into the 00:06:37.100 --> 00:06:39.819 20th century, which just shows how inaccessible 00:06:39.819 --> 00:06:42.000 some of those northern and eastern fjords are. 00:06:42.199 --> 00:06:44.670 Exactly. The eastern coast was mapped further 00:06:44.670 --> 00:06:47.829 north in 1905 by Godfred Hansen, who was part 00:06:47.829 --> 00:06:50.389 of Roald Amundsen's Gurea expedition. Then the 00:06:50.389 --> 00:06:52.589 northeast corner was finally charted during William 00:06:52.589 --> 00:06:55.149 R. Stephenson's massive Canadian Arctic expedition. 00:06:55.410 --> 00:06:57.430 That's where Storker T. Storkerson comes in, 00:06:57.529 --> 00:07:00.009 right? He charted the northeast coast in 1916 00:07:00.009 --> 00:07:02.750 and 17 and ended up citing and lending his name 00:07:02.750 --> 00:07:04.990 to the Storkerson Peninsula. So it took nearly 00:07:04.990 --> 00:07:08.810 a century from 1826 to 1917 to fully map this 00:07:08.810 --> 00:07:11.730 one island. It's an unbelievable amount of time 00:07:11.730 --> 00:07:14.709 for one landmass. And the terrain is still so 00:07:14.709 --> 00:07:17.189 challenging that feats of endurance continue 00:07:17.189 --> 00:07:20.209 even today. I mean, think about that. 2008 track? 00:07:20.410 --> 00:07:22.519 I wanted to ask about that. Clark Carter and 00:07:22.519 --> 00:07:24.660 Chris Bray became the first recorded people to 00:07:24.660 --> 00:07:26.819 walk across the island. The scale of that is 00:07:26.819 --> 00:07:29.019 just daunting. It really is. It highlights the 00:07:29.019 --> 00:07:31.379 sheer difficulty of the Arctic ground. You know, 00:07:31.379 --> 00:07:35.240 a mix of tundra, ice, sometimes open water. They 00:07:35.240 --> 00:07:37.740 actually completed the remaining 660 kilometers 00:07:37.740 --> 00:07:41.019 of a much longer 1 ,000 -kilometer trek attempt 00:07:41.019 --> 00:07:43.560 that had failed years before. It wasn't just 00:07:43.560 --> 00:07:46.139 a hike. It was this grueling, protracted effort 00:07:46.139 --> 00:07:49.079 to conquer that distance. It just shows how untamed 00:07:49.079 --> 00:07:51.800 this island remains. I appreciate the resilience 00:07:51.800 --> 00:07:53.639 required just to live there, let alone cross 00:07:53.639 --> 00:07:56.040 it. So let's move to the physical landscape. 00:07:56.220 --> 00:07:58.199 You mentioned its shape being described as a 00:07:58.199 --> 00:08:00.699 stylized maple leaf, which is wonderfully fitting. 00:08:00.899 --> 00:08:03.360 Yes, and that distinctive shape is because of 00:08:03.360 --> 00:08:06.139 its heavily indented coastline. Geographically, 00:08:06.139 --> 00:08:09.540 it's often called an island of peninsulas. You 00:08:09.540 --> 00:08:12.040 look at a map and you see these three huge fingers 00:08:12.040 --> 00:08:14.899 jutting out. The Storkerson Peninsula and the 00:08:14.899 --> 00:08:17.100 vast Prince Albert Peninsula pointing north. 00:08:17.480 --> 00:08:20.220 and the Wollaston Peninsula pointing west. And 00:08:20.220 --> 00:08:22.300 it isn't just flat either. Where is the highest 00:08:22.300 --> 00:08:25.500 point on this massive landmass? The high point 00:08:25.500 --> 00:08:27.759 is the Shaler Mountains. They're located in the 00:08:27.759 --> 00:08:30.720 north central region, and they reach about 655 00:08:30.720 --> 00:08:34.539 meters, or 2 ,149 feet. They're a really significant 00:08:34.539 --> 00:08:37.379 landmark in the Arctic archipelago. And internally, 00:08:37.399 --> 00:08:39.840 the water features are just as massive. The largest 00:08:39.840 --> 00:08:42.779 lake... Tahiriwak, formerly Ferguson Lake, is 00:08:42.779 --> 00:08:45.480 in the southeast, near Cambridge Bay. That lake 00:08:45.480 --> 00:08:48.480 alone is 562 square kilometers. That's nearly 00:08:48.480 --> 00:08:50.200 the size of Singapore, just sitting in the middle 00:08:50.200 --> 00:08:52.100 of this island. Yeah. But let's zoom out, because 00:08:52.100 --> 00:08:54.360 the surrounding bodies of water are what tie 00:08:54.360 --> 00:08:56.879 this remote geography directly to global politics. 00:08:57.240 --> 00:09:00.240 Okay, let's list the key waterways. To the north, 00:09:00.259 --> 00:09:03.059 you have Viscount Melville Sound. To the east, 00:09:03.200 --> 00:09:06.259 McClintock Channel and Victoria Street. West, 00:09:06.320 --> 00:09:08.159 the Emerson Gulf and Prince of Wales Street. 00:09:08.419 --> 00:09:11.860 And then south, Dease Strait, Coronation Gulf, 00:09:12.059 --> 00:09:14.899 and Dolphin and Union Strait. That list of names 00:09:14.899 --> 00:09:16.879 is basically the blueprint for the Northwest 00:09:16.879 --> 00:09:20.240 Passage. Exactly. And this is where the geopolitics 00:09:20.240 --> 00:09:23.620 gets very hot. The Southern Waterways and sometimes 00:09:23.620 --> 00:09:25.899 the Prince of Wales Strait are recognized parts 00:09:25.899 --> 00:09:28.899 of the Northwest Passage. Canada claims these 00:09:28.899 --> 00:09:31.710 are Canadian internal waters. When Canada says 00:09:31.710 --> 00:09:33.889 internal waters, what does that practically mean? 00:09:34.250 --> 00:09:36.909 It means they assert full and complete sovereignty 00:09:36.909 --> 00:09:39.149 over those channels, just like they would over 00:09:39.149 --> 00:09:41.590 a lake or a river completely inside their territory. 00:09:41.870 --> 00:09:44.549 They argue that because these channels are historically 00:09:44.549 --> 00:09:47.169 critical to Canada and often frozen over, they 00:09:47.169 --> 00:09:49.210 aren't part of the international high seas. But 00:09:49.210 --> 00:09:51.789 other nations, the US, various European powers, 00:09:51.950 --> 00:09:54.149 they dispute that claim. What's their argument? 00:09:54.690 --> 00:09:56.570 They argue that they should be classified as 00:09:56.570 --> 00:09:59.629 either territorial or fully international waters. 00:10:00.789 --> 00:10:03.629 Territorial waters allow for the right of innocent 00:10:03.629 --> 00:10:06.330 passage for foreign vessels, meaning commercial 00:10:06.330 --> 00:10:08.750 ships, and even naval vessels can pass through 00:10:08.750 --> 00:10:10.669 freely if they aren't threatening security. And 00:10:10.669 --> 00:10:12.309 if they were international, then there would 00:10:12.309 --> 00:10:14.909 be unrestricted freedom of navigation for everyone. 00:10:15.169 --> 00:10:19.210 So this gigantic, mostly empty island is a cornerstone 00:10:19.210 --> 00:10:22.210 in a major global dispute over transit rights 00:10:22.210 --> 00:10:24.669 and sovereignty, especially as climate change 00:10:24.669 --> 00:10:27.330 opens up the passage. It puts the entire region 00:10:27.330 --> 00:10:30.120 right on the world stage. But before we leave 00:10:30.120 --> 00:10:32.620 geography, we promise to return to that mind 00:10:32.620 --> 00:10:35.779 bending fact. The island within an island within 00:10:35.779 --> 00:10:38.679 an island. How does Victoria Island pull this 00:10:38.679 --> 00:10:41.580 nesting doll trick off? OK, walk me through this 00:10:41.580 --> 00:10:43.399 layer by layer because it sounds like a riddle. 00:10:43.399 --> 00:10:45.940 It's all about size and elevation changes. So 00:10:45.940 --> 00:10:48.480 layer one, Victoria Island is obviously an island 00:10:48.480 --> 00:10:50.860 in the Arctic Ocean. Layer two, it's so vast 00:10:50.860 --> 00:10:53.379 that it contains massive lakes and also countless 00:10:53.379 --> 00:10:56.730 smaller unnamed lakes. layer three within one 00:10:56.730 --> 00:10:59.450 of those large internal lakes there is an island 00:10:59.450 --> 00:11:03.389 so we have an island in a lake on victoria island 00:11:03.389 --> 00:11:06.370 okay where does the fourth layer come from a 00:11:06.370 --> 00:11:08.669 fourth layer is a small body of water like a 00:11:08.669 --> 00:11:11.250 pond or a tarn that's located on that third layer 00:11:11.250 --> 00:11:14.990 island and inside that pond is a tiny eyelid 00:11:15.360 --> 00:11:17.539 Because Victoria Island hosts the largest known 00:11:17.539 --> 00:11:20.179 structure of this kind globally, an unnamed lake 00:11:20.179 --> 00:11:22.220 on an unnamed island in another unnamed lake, 00:11:22.379 --> 00:11:24.919 it becomes this geographic marvel that is so 00:11:24.919 --> 00:11:27.179 hard to picture. That is legitimately fascinating. 00:11:27.480 --> 00:11:30.519 It proves that even in the seemingly empty vastness 00:11:30.519 --> 00:11:33.700 of the Arctic, geometry can get extremely complicated. 00:11:34.220 --> 00:11:36.759 Let's move to the environment. Climate and biology. 00:11:37.080 --> 00:11:39.860 What defines life on Victoria Island? Life here 00:11:39.860 --> 00:11:42.899 is defined by extremes. The climate is a cup 00:11:42.899 --> 00:11:46.059 ET or a tundra. And what that means is the environment 00:11:46.059 --> 00:11:48.460 is too cold to support tree growth. And critically, 00:11:48.679 --> 00:11:50.700 no month has an average temperature that even 00:11:50.700 --> 00:11:52.620 reaches 10 degrees Celsius. We're talking about 00:11:52.620 --> 00:11:54.919 permafrost dominating the soil in extremely compressed 00:11:54.919 --> 00:11:57.379 seasons. And the seasons are brutal. The winters 00:11:57.379 --> 00:11:59.940 are long, dark, and frigid, with October being 00:11:59.940 --> 00:12:02.320 notoriously the snowiest month. And the summers 00:12:02.320 --> 00:12:04.919 are cool and rainy, but that warmth is just so 00:12:04.919 --> 00:12:07.539 fleeting. And we have to talk about the sun cycles, 00:12:07.720 --> 00:12:10.899 which dominate absolutely everything. Using Cambridge 00:12:10.899 --> 00:12:13.669 Bay data as our benchmark, The polar night, when 00:12:13.669 --> 00:12:16.029 the sun is continuously below the horizon, runs 00:12:16.029 --> 00:12:19.309 from roughly November 30th to January 11th. Six 00:12:19.309 --> 00:12:21.750 weeks of darkness. And the flip side is the midnight 00:12:21.750 --> 00:12:23.929 sun. Right. The midnight sun, when the sun is 00:12:23.929 --> 00:12:26.309 continuously above the horizon, runs from about 00:12:26.309 --> 00:12:29.750 May 19th to July 22nd. And those long stretches 00:12:29.750 --> 00:12:32.990 of darkness and light, they regulate the metabolic 00:12:32.990 --> 00:12:35.429 cycles of all life on the island, especially 00:12:35.429 --> 00:12:37.490 migrating animals. But I'm still stuck on the 00:12:37.490 --> 00:12:39.269 temperature range. That's the clearest indicator 00:12:39.269 --> 00:12:41.549 of the harshness. The variability is staggering. 00:12:42.159 --> 00:12:45.000 The record high registered in Cambridge Bay is 00:12:45.000 --> 00:12:47.980 a very warm 28 .9 degrees Celsius. That's at 00:12:47.980 --> 00:12:51.620 84 Fahrenheit, which is truly anomalous. But 00:12:51.620 --> 00:12:53.840 then you contrast that with the record low, which 00:12:53.840 --> 00:12:58.940 plunges to minus 52 .8 Celsius or minus 63 Fahrenheit. 00:12:59.220 --> 00:13:01.919 That vast swing shows the incredible adaptive 00:13:01.919 --> 00:13:04.179 pressure on the local wildlife. What's the most 00:13:04.179 --> 00:13:07.019 iconic example of fauna adapted to this? That 00:13:07.019 --> 00:13:09.120 would have to be the dolphin union caribou herd, 00:13:09.279 --> 00:13:12.990 locally known as island caribou. This herd is 00:13:12.990 --> 00:13:15.970 endemic to Canada, and they have this rare migratory 00:13:15.970 --> 00:13:18.149 behavior that makes them particularly vulnerable 00:13:18.149 --> 00:13:20.950 to climate change. And that rare behavior is 00:13:20.950 --> 00:13:23.909 the sea ice crossing, correct? Precisely. They 00:13:23.909 --> 00:13:26.070 migrate from their summer grazing grounds on 00:13:26.070 --> 00:13:28.529 Victoria Island to their winter grazing on the 00:13:28.529 --> 00:13:31.110 mainland by crossing the Dolphin and Union Strait, 00:13:31.190 --> 00:13:35.610 specifically using the sea ice as a bridge. This 00:13:35.610 --> 00:13:38.470 migration across sea ice is highly unusual for 00:13:38.470 --> 00:13:40.639 North American caribou. And not many others do 00:13:40.639 --> 00:13:42.500 it. The only other population that does this 00:13:42.500 --> 00:13:45.080 is the smaller Piri caribou, which also inhabits 00:13:45.080 --> 00:13:47.360 Victoria Island. So if the sea ice forms later 00:13:47.360 --> 00:13:49.360 or breaks up earlier, that migration corridor 00:13:49.360 --> 00:13:52.120 just vanishes. That makes them incredibly fragile. 00:13:52.500 --> 00:13:54.220 Extremely fragile. And that brings us to the 00:13:54.220 --> 00:13:57.549 very base of their food web. the incredible lichen 00:13:57.549 --> 00:14:00.870 flora. Lichens are truly the unsung heroes of 00:14:00.870 --> 00:14:03.429 the Arctic ecosystem. They seem so small, but 00:14:03.429 --> 00:14:05.909 they underpin everything. A survey in 2018 and 00:14:05.909 --> 00:14:07.990 19 around Cambridge Bay revealed an astonishing 00:14:07.990 --> 00:14:12.250 level of biodiversity. It documented 237 lichen 00:14:12.250 --> 00:14:14.769 species. Yeah. And what was truly remarkable 00:14:14.769 --> 00:14:18.529 was that 35 of those species had never been reported 00:14:18.529 --> 00:14:20.490 from the Canadian Arctic Archipelago before. 00:14:20.690 --> 00:14:22.830 It just shows how much we still have to learn. 00:14:22.990 --> 00:14:26.460 Why is that biodiversity so essential? And how 00:14:26.460 --> 00:14:28.559 does the geology of Victoria Island influence 00:14:28.559 --> 00:14:31.700 it? The lichens are the major winter food source 00:14:31.700 --> 00:14:34.539 for both muskox and caribou when everything else 00:14:34.539 --> 00:14:37.519 is frozen or covered in snow. The distribution 00:14:37.519 --> 00:14:39.980 of these lichens is governed by moisture and 00:14:39.980 --> 00:14:43.029 the bedrock chemistry. The source material highlights 00:14:43.029 --> 00:14:46.129 that the presence of lime -rich, till -so alkaline 00:14:46.129 --> 00:14:48.769 soil with calcium around Cambridge Bay favors 00:14:48.769 --> 00:14:50.690 what are called crustose communities. Those are 00:14:50.690 --> 00:14:52.870 the hard, crusty lichens that stick right to 00:14:52.870 --> 00:14:55.029 rocks. That's them. And those specific communities 00:14:55.029 --> 00:14:57.710 are absolutely critical for sustaining the caribou 00:14:57.710 --> 00:15:00.330 through the long, dark winter. It's a chain of 00:15:00.330 --> 00:15:02.870 survival that links the largest mammal to the 00:15:02.870 --> 00:15:05.230 slowest growing organism. Absolutely. So as the 00:15:05.230 --> 00:15:07.590 Arctic warms, monitoring these specific lichen 00:15:07.590 --> 00:15:10.070 communities is vital because their survival will 00:15:10.070 --> 00:15:11.899 directly affect them. the health of the iconic 00:15:11.899 --> 00:15:15.080 island caribou herds. So what does this all mean? 00:15:15.620 --> 00:15:18.080 We've taken this deep dive into Victoria Island, 00:15:18.299 --> 00:15:21.700 a landmass that completely redefines scale. Larger 00:15:21.700 --> 00:15:23.960 than Great Britain, split between two Canadian 00:15:23.960 --> 00:15:27.200 territories. With its indigenous name, Kitlinek, 00:15:27.240 --> 00:15:29.679 we've seen how its mapping was this protracted 00:15:29.679 --> 00:15:32.179 process of fragmented discovery that spanned 00:15:32.179 --> 00:15:34.990 an entire century. giving rise to unique features 00:15:34.990 --> 00:15:37.529 like the largest known island within an island 00:15:37.529 --> 00:15:40.330 within an island. And we know that this polar 00:15:40.330 --> 00:15:43.590 region forces life from the tiny lichen to the 00:15:43.590 --> 00:15:46.970 massive migrating island caribou to adapt to 00:15:46.970 --> 00:15:50.190 extremes, defining its unique and fragile ecology. 00:15:50.629 --> 00:15:52.610 But here's where it gets really interesting and 00:15:52.610 --> 00:15:54.559 something for you to think about. We established 00:15:54.559 --> 00:15:56.580 that the waterways surrounding Victoria Island 00:15:56.580 --> 00:15:59.279 are central to the Northwest Passage, a critical 00:15:59.279 --> 00:16:01.940 choke point between East and West. Given the 00:16:01.940 --> 00:16:04.120 massive historical effort it took merely to map 00:16:04.120 --> 00:16:06.519 this island, and given that the waters are warming 00:16:06.519 --> 00:16:08.799 and becoming more navigable, how should Canada 00:16:08.799 --> 00:16:11.039 balance its deeply rooted claim of these channels 00:16:11.039 --> 00:16:13.759 as internal waters with the growing global economic 00:16:13.759 --> 00:16:15.840 and security pressure from nations who demand 00:16:15.840 --> 00:16:18.799 innocent passage through this newly thawed route? 00:16:19.100 --> 00:16:21.240 The legacy of exploration has transformed into 00:16:21.240 --> 00:16:25.070 a future of... strategic geopolitics. Victoria 00:16:25.070 --> 00:16:27.889 Island isn't just a physical giant, it's an indispensable 00:16:27.889 --> 00:16:30.070 strategic piece on the global chessboard today.