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.
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- NARRATOR: WHEN YOU SEE THIS
- SYMBOL YOU KNOW YOU'RE WATCHING
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TELEVISION THAT IS EDUCATIONAL
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AND INFORMATIONAL.
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THE MORE YOU KNOW ON NBC.
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- DYLAN: WELCOME TO "EARTH
- ODYSSEY".
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I'M DYLAN DREYER.
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GET READY TO TRAVEL AROUND
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THE WORLD.
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TODAY, WE DISCOVER THE
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EPIC JOURNEY OF THE
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PACIFIC SALMON AND TRY TO
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STAY OUT OF HARM'S WAY.
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PLUS, WE'LL DODGE BLACK
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BEARS' HUGE PAWS AND
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SEAGULLS' BIG BEAKS AS WE
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JOURNEY THROUGH VANCOUVER
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ISLAND ON ONE OF THE
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CRAZIEST ADVENTURES IN THE
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ANIMAL KINGDOM.
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[MUSIC]
22
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- DYLAN: AS THE THIRD
- LARGEST CONTINENT IN THE
23
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WORLD, NORTH AMERICA IS
24
00:01:05,250 --> 00:01:06,699
HOME TO THOUSANDS OF
25
00:01:06,700 --> 00:01:08,568
- DIFFERENT SPECIES OF
- ANIMALS.
26
00:01:08,571 --> 00:01:09,936
SOME ARE PREDATORS; SOME
27
00:01:09,937 --> 00:01:11,303
ARE PREY, BUT ALL WORK
28
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TOGETHER TO KEEP THE
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00:01:12,824 --> 00:01:14,340
CIRCLE OF LIFE IN MOTION,
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AND THERE'S ONE SMALL FISH
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IN BRITISH COLUMBIA THAT
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MEANS AS MUCH, IF NOT
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MORE, TO ITS ENVIRONMENT
34
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THAN ANY OTHER CREATURE ON
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EARTH, THE SALMON.
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- IT'S MORE THAN JUST FOOD
- FOR THE BLACK BEARS AND
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EAGLES.
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IT'S THE FOCAL POINT FOR
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LIFE IN BOTH THE FORESTS
40
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AND RIVERS OF VANCOUVER.
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LET'S TAKE A LOOK.
42
00:01:37,731 --> 00:01:39,283
VANCOUVER ISLAND IS HOME
43
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TO ONE OF THE WORLD'S MOST
44
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DIVERSE ECOSYSTEMS...
45
00:01:45,972 --> 00:01:46,973
...GLACIER-CAPPED
46
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MOUNTAINS, ANCIENT
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FORESTS, NUTRIENT-RICH
48
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OCEANS, AND A NETWORK OF
49
00:01:52,979 --> 00:01:54,831
RIVERS AND CREEKS THAT
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00:01:54,832 --> 00:01:56,682
SUPPORT A WILDERNESS LIKE
51
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NO OTHER.
52
00:02:01,788 --> 00:02:04,174
BUT ONE CREATURE STANDS
53
00:02:04,175 --> 00:02:06,558
OUT ABOVE ALL THE REST,
54
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THE PACIFIC SALMON.
55
00:02:08,795 --> 00:02:10,831
VIRTUALLY ALL LIFE HERE
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RELIES ON ITS EXISTENCE.
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AS SUMMER DRAWS TO AN END,
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THE ISLAND PREPARES FOR AN
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00:02:19,839 --> 00:02:21,558
INVASION OF SALMON, A
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00:02:21,559 --> 00:02:23,275
SPECTACLE THAT FUELS THE
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REGION'S RIVERS OF LIFE.
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HUGGING THE WEST COAST OF
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CANADA, VANCOUVER ISLAND
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STRETCHES APPROXIMATELY
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280 MILES LONG BY ABOUT 60
66
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MILES WIDE.
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00:02:41,861 --> 00:02:43,096
IT'S THE LARGEST ISLAND
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OFF THE WEST COAST OF
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NORTH AMERICA.
70
00:02:48,535 --> 00:02:50,804
- WHILE GLACIERS FUEL THE
- FLOW OF SOME OF CANADA'S
71
00:02:50,807 --> 00:02:52,839
TALLEST WATERFALLS, AN
72
00:02:52,840 --> 00:02:54,874
ENDLESS NETWORK OF RIVERS
73
00:02:56,509 --> 00:02:58,161
AND CREEKS PROVIDES THE
74
00:02:58,162 --> 00:02:59,812
IDEAL HABITAT FOR ONE OF
75
00:02:59,813 --> 00:03:01,881
- THE WORLD'S MOST IMPORTANT
- FISH.
76
00:03:06,586 --> 00:03:07,971
EACH YEAR, HALF-A-BILLION
77
00:03:07,972 --> 00:03:09,355
SALMON LEAVE THE SEA TO
78
00:03:09,356 --> 00:03:10,807
RETURN TO THEIR SPAWNING
79
00:03:10,808 --> 00:03:12,257
GROUNDS IN THE RIVERS OF
80
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NORTH AMERICA.
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00:03:17,964 --> 00:03:19,182
VANCOUVER ISLAND IS THE
82
00:03:19,183 --> 00:03:20,399
DESTINATION FOR MILLIONS
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00:03:20,400 --> 00:03:22,469
OF THESE DETERMINED FISH.
84
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- ON THEIR REMARKABLE
- JOURNEY, THE SALMON FACE
85
00:03:28,311 --> 00:03:30,344
AN ENDLESS ARRAY OF
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00:03:30,345 --> 00:03:32,379
CHALLENGES AND OBSTACLES.
87
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NOT ALL MANAGE TO MAKE IT
88
00:03:36,451 --> 00:03:37,783
HOME TO SPAWN THE NEXT
89
00:03:37,784 --> 00:03:39,853
GENERATION.
90
00:03:55,368 --> 00:03:56,836
AT THE NORTHERN TIP OF THE
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00:03:56,837 --> 00:03:58,303
ISLAND IN THE JOHNSTONE
92
00:03:58,304 --> 00:03:59,923
STRAIT, MILLIONS OF SALMON
93
00:03:59,924 --> 00:04:01,540
CONVERGE AFTER HAVING
94
00:04:01,541 --> 00:04:03,543
SPENT UP TO FIVE YEARS AT
95
00:04:03,544 --> 00:04:05,545
SEA IN THE PACIFIC OCEAN.
96
00:04:12,852 --> 00:04:14,688
THIS IS THE FIRST STAGE OF
97
00:04:14,689 --> 00:04:16,522
THEIR TESTING JOURNEY, AND
98
00:04:16,523 --> 00:04:17,924
ALTHOUGH THE BLACK BEARS
99
00:04:17,925 --> 00:04:19,324
LIE FURTHER INLAND,
100
00:04:19,325 --> 00:04:21,361
ANOTHER PREDATOR IS EAGER
101
00:04:21,362 --> 00:04:23,396
TO GREET THEM.
102
00:04:30,770 --> 00:04:32,272
NAMED AFTER THE NATURALIST
103
00:04:32,273 --> 00:04:33,772
GEORG WILHELM STELLER WHO
104
00:04:33,773 --> 00:04:35,842
FIRST DESCRIBED THEM IN
105
00:04:35,843 --> 00:04:37,910
1742, STELLER SEA LIONS
106
00:04:37,911 --> 00:04:39,861
ARE THE LARGEST OF ALL SEA
107
00:04:39,862 --> 00:04:41,809
LIONS.
108
00:04:41,810 --> 00:04:43,983
- THEY CAN REACH MORE THAN
- TEN FEET LONG AND WEIGH
109
00:04:43,986 --> 00:04:46,860
MORE THAN A TON.
110
00:04:51,910 --> 00:04:53,085
UNLIKE MOST TRUE OR
111
00:04:53,086 --> 00:04:54,259
CRAWLING SEALS, THEY CAN
112
00:04:54,260 --> 00:04:56,329
WALK ON ALL FOUR FLIPPERS.
113
00:05:04,337 --> 00:05:05,722
SEA LIONS ALSO HAVE
114
00:05:05,723 --> 00:05:07,106
VISIBLE EARS AND ARE OFTEN
115
00:05:07,107 --> 00:05:09,142
MUCH MORE VOCAL THAN THEIR
116
00:05:09,143 --> 00:05:11,177
COUNTERPARTS.
117
00:05:13,780 --> 00:05:15,082
SOUNDING LIKE A GROUP OF
118
00:05:15,083 --> 00:05:16,382
GRUMPY OLD MEN, THE MALES
119
00:05:16,383 --> 00:05:18,001
CONSTANTLY BICKER FOR A
120
00:05:18,002 --> 00:05:19,618
BETTER POSITION ON COASTAL
121
00:05:19,619 --> 00:05:21,688
ROCKS.
122
00:05:32,532 --> 00:05:34,084
STELLER SEA LIONS NEED TO
123
00:05:34,085 --> 00:05:35,634
EAT AROUND SIX PERCENT OF
124
00:05:35,635 --> 00:05:39,171
THEIR BODYWEIGHT EACH DAY.
125
00:05:39,172 --> 00:05:40,824
SOON, HUNGER KICKS IN, AND
126
00:05:40,825 --> 00:05:42,474
IT'S TIME FOR A SPOT OF
127
00:05:42,475 --> 00:05:44,544
FISHING.
128
00:05:49,949 --> 00:05:51,134
SEA LIONS MAY SEEM
129
00:05:51,135 --> 00:05:52,317
CUMBERSOME ON LAND, BUT
130
00:05:52,318 --> 00:05:54,354
UNDERWATER, THEY BECOME
131
00:05:54,355 --> 00:05:56,389
STREAMLINED AND SLEEK.
132
00:06:07,701 --> 00:06:09,019
HITTING SPEEDS OF MORE
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00:06:09,020 --> 00:06:10,336
THAN 18 MILES PER HOUR,
134
00:06:10,337 --> 00:06:12,372
THEY MAKE TIGHT TURNS TO
135
00:06:12,373 --> 00:06:14,407
OUT-MANEUVER THEIR PREY.
136
00:06:23,383 --> 00:06:24,668
UNLUCKY VICTIMS ARE
137
00:06:24,669 --> 00:06:25,951
DISPATCHED WITH QUICK
138
00:06:25,952 --> 00:06:29,455
PRECISION.
139
00:06:29,456 --> 00:06:31,791
- COMING UP, WE'LL CONTINUE
- TO FOLLOW THE SALMON ON
140
00:06:31,794 --> 00:06:33,276
THEIR JOURNEY AND SEE IF
141
00:06:33,277 --> 00:06:34,760
THEY CAN BEAR THE
142
00:06:34,761 --> 00:06:36,128
OBSTACLES.
143
00:06:36,129 --> 00:06:37,164
THAT'S NEXT ON "EARTH
144
00:06:37,165 --> 00:06:38,198
ODYSSEY".
145
00:06:42,680 --> 00:06:47,273
.
146
00:06:48,141 --> 00:06:50,710
- NARRATOR: WE NOW RETURN TO THE
- MORE YOU KNOW ON NBC
147
00:07:03,456 --> 00:07:04,674
DYLAN: IN VANCOUVER,
148
00:07:04,675 --> 00:07:05,891
BEAVER PONDS PLAY A KEY
149
00:07:05,892 --> 00:07:08,011
ROLE IN THE LIFE OF
150
00:07:08,012 --> 00:07:10,129
PACIFIC SALMON.
151
00:07:10,130 --> 00:07:11,682
THESE VAST, CALM STRETCHES
152
00:07:11,683 --> 00:07:13,232
OF WATER TRAP NUTRIENTS
153
00:07:13,233 --> 00:07:17,670
FLOWING DOWNSTREAM.
154
00:07:17,671 --> 00:07:18,956
THIS CREATES A PERFECT
155
00:07:18,957 --> 00:07:20,239
HABITAT FOR AQUATIC
156
00:07:20,240 --> 00:07:21,875
INVERTEBRATES, WHICH IN
157
00:07:21,876 --> 00:07:23,509
TURN PROVIDES FISH WITH
158
00:07:23,510 --> 00:07:24,995
FORAGING OPPORTUNITIES NOT
159
00:07:24,996 --> 00:07:26,478
FOUND IN FAST-FLOWING
160
00:07:26,479 --> 00:07:31,150
STREAMS.
161
00:07:31,151 --> 00:07:32,836
THESE JUVENILE SALMON
162
00:07:32,837 --> 00:07:34,520
HATCHED SIX MONTHS AGO
163
00:07:34,521 --> 00:07:36,974
FOLLOWING LAST YEAR'S
164
00:07:36,975 --> 00:07:39,425
SPAWNING.
165
00:07:39,426 --> 00:07:40,960
- THEY'LL SPEND THE NEXT
- YEAR OR SO IN THESE
166
00:07:40,963 --> 00:07:42,460
FRESHWATER NURSERIES
167
00:07:42,461 --> 00:07:43,959
BEFORE THEY'RE LARGE
168
00:07:43,960 --> 00:07:47,900
ENOUGH TO HEAD OUT TO SEA.
169
00:07:47,901 --> 00:07:50,136
- AT AROUND THREE YEARS OF
- AGE, THEY'LL RETURN TO
170
00:07:50,139 --> 00:07:51,671
THIS EXACT STRETCH OF
171
00:07:51,672 --> 00:07:53,206
WATER TO BREED.
172
00:07:58,845 --> 00:08:01,214
- FURTHER DOWNSTREAM TOWARDS
- THE OCEAN, MANY RIVERS
173
00:08:01,217 --> 00:08:03,283
FLOW FAR TOO FAST TO DAM.
174
00:08:07,721 --> 00:08:09,622
- A STRETCH OF MOUNTAINS
- RUNNING THE ENTIRE LENGTH
175
00:08:09,625 --> 00:08:11,057
OF THE ISLAND GIVES RISE
176
00:08:11,058 --> 00:08:12,491
TO SOME OF CANADA'S MOST
177
00:08:12,492 --> 00:08:14,561
SPECTACULAR WATERFALLS.
178
00:08:27,941 --> 00:08:30,196
SHOALS OF SALMON HAVE
179
00:08:30,197 --> 00:08:32,450
WORKED THEIR WAY INLAND.
180
00:08:33,313 --> 00:08:34,631
USING AN EXTRAORDINARY
181
00:08:34,632 --> 00:08:35,948
SENSE OF SMELL, THEY HAVE
182
00:08:35,949 --> 00:08:38,418
- HOMED IN ON THE FRESHWATER
- RIVER IN WHICH THEY
183
00:08:38,421 --> 00:08:41,869
HATCHED.
184
00:08:41,870 --> 00:08:43,456
- THEY CAN SNIFF OUT A
- SINGLE DROP FROM THEIR
185
00:08:43,459 --> 00:08:45,528
NURSERY STREAM IN ALMOST
186
00:08:45,529 --> 00:08:47,599
TWO MILLION GALLONS OF SEA
187
00:08:47,600 --> 00:08:51,296
WATER.
188
00:08:51,297 --> 00:08:52,832
BUT THE SALMON AREN'T HOME
189
00:08:52,833 --> 00:08:54,367
YET.
190
00:08:58,204 --> 00:09:00,240
- THEY PAUSE AND PREPARE
- THEMSELVES FOR THE
191
00:09:00,243 --> 00:09:02,308
OBSTACLE THAT LIES AHEAD.
192
00:09:11,284 --> 00:09:12,486
THESE SALMON WERE BORN TO
193
00:09:12,487 --> 00:09:13,686
RETURN TO THEIR SPAWNING
194
00:09:13,687 --> 00:09:16,223
GROUND, AND NOTHING SHORT
195
00:09:16,224 --> 00:09:18,758
OF DEATH WILL STOP THEM.
196
00:09:30,537 --> 00:09:32,672
- RACING TOWARDS THE FALL,
- THEY LAUNCH THEMSELVES
197
00:09:32,675 --> 00:09:34,741
INTO THE AIR.
198
00:09:43,490 --> 00:09:45,518
- BENEATH THE WHITE FROTH,
- WATER IS SQUEEZED BACK UP
199
00:09:45,521 --> 00:09:48,539
TO THE SURFACE.
200
00:09:48,540 --> 00:09:50,790
- THE SALMON USE THIS
- HYDRAULIC UPLIFT TO BOOST
201
00:09:50,793 --> 00:09:52,859
THEIR JUMPS.
202
00:10:06,106 --> 00:10:08,141
INITIAL LEAPS ARE RARELY
203
00:10:08,142 --> 00:10:10,176
SUCCESSFUL.
204
00:10:13,613 --> 00:10:15,148
BUT GIVING UP ISN'T AN
205
00:10:15,149 --> 00:10:16,683
OPTION.
206
00:10:27,727 --> 00:10:29,262
EVENTUALLY, PERSEVERANCE
207
00:10:29,263 --> 00:10:30,797
PAYS OFF.
208
00:10:44,511 --> 00:10:46,546
THESE ATHLETIC EFFORTS ARE
209
00:10:46,547 --> 00:10:48,581
FUELED BY STORED ENERGY.
210
00:11:07,901 --> 00:11:10,203
- THE SALMON STOPPED EATING
- AND DRINKING AS SOON AS
211
00:11:10,206 --> 00:11:12,372
- THEY ENTERED THE
- FRESHWATER RIVERS SEVERAL
212
00:11:12,375 --> 00:11:16,141
DAYS AGO.
213
00:11:16,142 --> 00:11:17,377
COMING UP, THESE PACIFIC
214
00:11:17,378 --> 00:11:18,610
SALMON FACE THEIR BIGGEST
215
00:11:18,611 --> 00:11:20,246
AND FURRIEST CHALLENGE
216
00:11:20,247 --> 00:11:21,880
YET.
217
00:11:21,881 --> 00:11:23,149
PLUS, WHAT HAPPENS AT THE
218
00:11:23,150 --> 00:11:24,416
END OF THIS EPIC JOURNEY
219
00:11:24,417 --> 00:11:26,518
FOR THESE VITAL FISH?
220
00:11:26,519 --> 00:11:28,588
NEXT, ON "EARTH ODYSSEY".
221
00:11:33,226 --> 00:11:38,298
.
222
00:11:39,199 --> 00:11:41,768
- NARRATOR: WE NOW RETURN TO THE
- MORE YOU KNOW ON NBC
223
00:11:53,847 --> 00:11:54,913
DYLAN: WELCOME BACK.
224
00:11:54,914 --> 00:11:56,266
THE AMERICAN BLACK BEAR IS
225
00:11:56,267 --> 00:11:57,616
ONE OF THE MOST COMMON AND
226
00:11:57,617 --> 00:11:58,902
LARGEST BEARS IN THE
227
00:11:58,903 --> 00:12:00,185
WORLD.
228
00:12:00,186 --> 00:12:01,488
THEY CAN BE FOUND FROM
229
00:12:01,489 --> 00:12:02,788
MEXICO TO CANADA AND AT
230
00:12:02,789 --> 00:12:04,191
LEAST 40 STATES IN
231
00:12:04,192 --> 00:12:05,591
BETWEEN, BUT THE DENSEST
232
00:12:05,592 --> 00:12:06,943
POPULATION OF THESE
233
00:12:06,944 --> 00:12:08,293
MASSIVE MAMMALS CAN BE
234
00:12:08,294 --> 00:12:10,296
FOUND ON THE RELATIVELY
235
00:12:10,297 --> 00:12:12,297
SMALL ISLAND OF VANCOUVER.
236
00:12:12,298 --> 00:12:13,298
WHY?
237
00:12:13,299 --> 00:12:14,584
BECAUSE ONE FISH GIVES
238
00:12:14,585 --> 00:12:15,868
THEM THE BARE NECESSITIES
239
00:12:15,869 --> 00:12:18,937
THEY NEED TO THRIVE.
240
00:12:18,938 --> 00:12:20,357
IT'S EARLY OCTOBER, AND
241
00:12:20,358 --> 00:12:21,774
MANY OF VANCOUVER ISLAND'S
242
00:12:21,775 --> 00:12:23,310
STREAMS HAVE DRIED TO JUST
243
00:12:23,311 --> 00:12:24,844
A TRICKLE.
244
00:12:29,315 --> 00:12:30,550
THE AUTUMN RAINS ARE LONG
245
00:12:30,551 --> 00:12:31,784
OVERDUE, AND THE RECENT
246
00:12:31,785 --> 00:12:33,387
DROUGHT HAS PREVENTED
247
00:12:33,388 --> 00:12:34,987
SALMON FROM MOVING UPRIVER
248
00:12:34,988 --> 00:12:37,454
TO REACH THEIR SPAWNING
249
00:12:37,455 --> 00:12:39,919
GROUNDS.
250
00:12:39,920 --> 00:12:42,162
- BUT IT APPEARS CHANGE IS
- IN THE AIR.
251
00:12:53,840 --> 00:12:55,608
- EVEN THE ISLAND'S BLACK
- BEARS, WHO HAVE BEEN
252
00:12:55,611 --> 00:12:57,143
WAITING PATIENTLY FOR
253
00:12:57,144 --> 00:12:58,678
WEEKS, SENSE IT.
254
00:13:05,518 --> 00:13:07,053
SOON, THE RIVERS ARE IN
255
00:13:07,054 --> 00:13:08,588
FULL FLOW.
256
00:13:13,526 --> 00:13:14,561
THE SALMON MAKE THEIR
257
00:13:14,562 --> 00:13:15,595
MOVE...
258
00:13:24,404 --> 00:13:26,473
...SO DO THE BEARS.
259
00:14:27,670 --> 00:14:29,402
- BLACK BEARS CAN KILL UP TO
- HALF THE SALMON IN THESE
260
00:14:29,405 --> 00:14:34,239
SMALLER STREAMS.
261
00:14:34,240 --> 00:14:35,909
THEY CAN EACH CONSUME UP
262
00:14:35,910 --> 00:14:37,576
TO 20,000 CALORIES A DAY
263
00:14:37,577 --> 00:14:38,612
WITH STOCKING UP FOR
264
00:14:38,613 --> 00:14:39,646
WINTER.
265
00:14:47,870 --> 00:14:49,556
- DESPITE THE DELUGE OF
- RAIN, THE RIVERS REMAIN
266
00:14:49,559 --> 00:14:51,558
- RELATIVELY CLEAR AND FREE
- OF DEBRIS.
267
00:14:55,395 --> 00:14:57,197
- TREE ROOTS IN THE
- SURROUNDING FOREST HOLD
268
00:14:57,200 --> 00:14:58,899
THE SOIL, WHICH FILTERS
269
00:14:58,900 --> 00:15:00,599
WATER BEFORE IT ENTERS THE
270
00:15:00,600 --> 00:15:03,469
STREAMS.
271
00:15:03,470 --> 00:15:04,838
THESE RIVERS CONTAIN SOME
272
00:15:04,839 --> 00:15:06,205
OF THE PUREST WATER IN THE
273
00:15:06,206 --> 00:15:10,776
WORLD.
274
00:15:10,777 --> 00:15:12,812
- FOR THOSE SALMON THAT
- MANAGE TO AVOID THE BEARS
275
00:15:12,815 --> 00:15:13,964
AND MAKE IT FARTHER
276
00:15:13,965 --> 00:15:15,114
UPSTREAM, A FINAL
277
00:15:15,115 --> 00:15:17,183
CHALLENGE LIES AHEAD.
278
00:15:31,698 --> 00:15:32,983
MALES AT THIS STAGE ARE
279
00:15:32,984 --> 00:15:34,266
OFTEN GAUNT WITH HOOKED
280
00:15:34,267 --> 00:15:35,802
JAWS, HUMPED BACKS, AND
281
00:15:35,803 --> 00:15:37,337
BATTLE-TORN FINS.
282
00:15:41,474 --> 00:15:42,842
MANY FEMALES DISPLAY LARGE
283
00:15:42,843 --> 00:15:44,209
WHITE PATCHES OF BRUISED
284
00:15:44,210 --> 00:15:48,814
AND DISEASED SKIN.
285
00:15:48,815 --> 00:15:50,317
FORTUNATELY, THEIR MISSION
286
00:15:50,318 --> 00:15:51,818
IS NEARLY OVER.
287
00:15:57,891 --> 00:15:59,411
FEMALES JOSTLE FOR
288
00:15:59,412 --> 00:16:00,929
POSITION ABOVE THE BEST
289
00:16:00,930 --> 00:16:04,797
PLACES TO LAY THEIR EGGS.
290
00:16:04,798 --> 00:16:06,233
COMING UP, THE JOURNEY IS
291
00:16:06,234 --> 00:16:07,666
DRAWING TO A CLOSE, BUT
292
00:16:07,667 --> 00:16:08,935
THAT DOESN'T MEAN THE
293
00:16:08,936 --> 00:16:10,202
ADVENTURE IS OVER.
294
00:16:10,203 --> 00:16:11,321
WAIT UNTIL YOU SEE THE
295
00:16:11,322 --> 00:16:12,438
FINAL STEP FOR THESE
296
00:16:12,439 --> 00:16:14,507
PACIFIC SALMON.
297
00:16:17,711 --> 00:16:23,249
.
298
00:16:23,650 --> 00:16:26,219
- NARRATOR: WE NOW RETURN TO THE
- MORE YOU KNOW ON NBC
299
00:16:39,399 --> 00:16:41,434
- DYLAN: WELCOME BACK TO
- VANCOUVER ISLAND, WHERE
300
00:16:41,437 --> 00:16:42,936
ONE FISH IS AS IMPORTANT
301
00:16:42,937 --> 00:16:44,437
AS ANYTHING LIVING HERE.
302
00:16:46,673 --> 00:16:48,108
FEMALE SALMON LAY AROUND
303
00:16:48,109 --> 00:16:49,541
THREE THOUSAND EGGS IN A
304
00:16:49,542 --> 00:16:53,779
SERIES OF NESTS.
305
00:16:53,780 --> 00:16:56,149
- EACH ONE IS COVERED BY
- GRAVEL TO PROTECT AGAINST
306
00:16:56,152 --> 00:16:57,534
PREDATORS AND TO PREVENT
307
00:16:57,535 --> 00:16:58,917
THE EGGS FROM DRIFTING
308
00:16:58,918 --> 00:17:01,210
AWAY.
309
00:17:12,320 --> 00:17:13,933
- BUT EVEN BEFORE THEY'VE
- HATCHED, THE SALMON'S
310
00:17:13,936 --> 00:17:15,785
BATTLE FOR SURVIVAL
311
00:17:15,786 --> 00:17:17,636
BEGINS.
312
00:17:17,637 --> 00:17:19,706
- GULLS PEDAL THEIR FEET
- ALONG THE FRESHLY VISITED
313
00:17:19,709 --> 00:17:21,775
SPAWNING GROUNDS.
314
00:17:26,312 --> 00:17:28,348
DISLODGED EGGS ARE A
315
00:17:28,349 --> 00:17:30,383
PROTEIN-RICH DELICACY.
316
00:17:43,960 --> 00:17:45,046
DIPPERS USUALLY EAT
317
00:17:45,047 --> 00:17:46,131
AQUATIC INSECT LARVAE
318
00:17:46,132 --> 00:17:48,168
WHICH THEY DIVE TO COLLECT
319
00:17:48,169 --> 00:17:50,203
FROM THE RIVER BOTTOM.
320
00:17:53,373 --> 00:17:55,775
- AT THIS TIME OF YEAR, THEY
- CAPITALIZE ON THE SALMON
321
00:17:55,778 --> 00:17:58,311
SPAWN; HOWEVER, CERTAIN
322
00:17:58,312 --> 00:18:00,847
PICKINGS ARE OFTEN TOO BIG
323
00:18:01,348 --> 00:18:03,416
TO SWALLOW.
324
00:18:16,930 --> 00:18:18,432
ONLY TEN PERCENT OF SALMON
325
00:18:18,433 --> 00:18:19,932
EGGS WILL SUCCESSFULLY
326
00:18:19,933 --> 00:18:23,569
HATCH.
327
00:18:23,570 --> 00:18:25,072
FOR EVERY ONE THOUSAND
328
00:18:25,073 --> 00:18:26,572
LAID, ONLY FOUR WILL MAKE
329
00:18:26,573 --> 00:18:28,608
THE JOURNEY TO THE OCEAN
330
00:18:28,609 --> 00:18:30,643
AND BACK AGAIN.
331
00:18:33,213 --> 00:18:35,248
THESE ADULT SALMON ARE
332
00:18:35,249 --> 00:18:37,283
ULTIMATE SURVIVORS.
333
00:18:41,870 --> 00:18:45,491
THEIR JOB IS DONE.
334
00:18:45,492 --> 00:18:46,944
THEY'VE PASSED THE BATON
335
00:18:46,945 --> 00:18:48,394
TO THE NEXT GENERATION,
336
00:18:48,395 --> 00:18:50,430
AND THIS FINAL ACT MARKS
337
00:18:50,431 --> 00:18:52,465
THE END OF THEIR LIFE.
338
00:18:58,972 --> 00:19:01,201
PACIFIC SALMON ALWAYS DIE
339
00:19:01,202 --> 00:19:03,430
AFTER THEY'VE SPAWNED.
340
00:19:04,210 --> 00:19:06,446
- THROUGH A COMBINATION OF
- EXHAUSTION AND THE EFFECTS
341
00:19:06,449 --> 00:19:07,998
OF MOVING FROM SALT TO
342
00:19:07,999 --> 00:19:09,548
FRESH WATER, THEY BREATHE
343
00:19:09,549 --> 00:19:11,585
THEIR LAST IN THE SAME
344
00:19:11,586 --> 00:19:13,620
STREAMS THAT SPAWNED THEM.
345
00:19:22,562 --> 00:19:24,597
- THEIR DECOMPOSING BODIES
- RELEASE NUTRIENTS THAT
346
00:19:24,600 --> 00:19:26,666
FEED THE AQUATIC FOOD WEB.
347
00:19:31,504 --> 00:19:33,173
- THIS, IN TURN, WILL
- NURTURE THE NEXT
348
00:19:33,176 --> 00:19:34,658
GENERATION OF SALMON
349
00:19:34,659 --> 00:19:36,141
THROUGHOUT VANCOUVER
350
00:19:36,142 --> 00:19:37,811
ISLAND'S RIVERS OF LIFE,
351
00:19:37,812 --> 00:19:39,478
AND THEIR JOURNEY IS
352
00:19:39,479 --> 00:19:41,548
FINALLY COMPLETE.
353
00:19:45,385 --> 00:19:46,586
THANKS FOR JOINING ME ON
354
00:19:46,587 --> 00:19:47,786
THIS SPECTACULAR JOURNEY
355
00:19:47,787 --> 00:19:48,955
THROUGH THE GREATEST
356
00:19:48,956 --> 00:19:50,122
PLACES ON EARTH.
357
00:19:50,123 --> 00:19:51,358
WE'LL SEE YOU NEXT TIME
358
00:19:51,359 --> 00:19:52,591
FOR ANOTHER "EARTH
359
00:19:52,592 --> 00:19:53,660
ODYSSEY".
360
00:19:54,461 --> 00:19:56,529
[MUSIC]
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