- 2 weeks ago
Journey to secret worlds where lives are wrapped in unexpected of ways, journeys into the hidden world of forests, from the temperate rainforests of Canada, where rarely seen spirit bears fish for salmon, into the planet's most complex and vital ecosystems...
1. 对生命适应力的致敬
• 这一集深入到世界各地的隐秘森林中，记录了无数生物为了生存而演化出的奇特本领。从微小的真菌到巨大的顶级掠食者，每一种生物都是森林交响乐中不可或缺的音符。
2. 对自然共生关系的致敬
• 节目用极高精度的宏观与微观镜头，揭示了森林中超越人类想象的“网络连结”。比如树木之间通过地下真菌网络（俗称“树联网”）共享资源、传递警告，这种无私而智慧的共生机制，是对大自然智慧的最高赞歌。
3. 唤醒敬畏与反思
• 大卫·爱登堡（David Attenborough）爵士的解说一如既往地深情而充满力量。这一集不仅展示了森林的美丽，也毫不避讳地展现了人类活动给这些古老生态系统带来的危机。它不仅是致敬，更是一声警钟，呼吁人类重新审视自己与自然的关系。
1. 对生命适应力的致敬
• 这一集深入到世界各地的隐秘森林中，记录了无数生物为了生存而演化出的奇特本领。从微小的真菌到巨大的顶级掠食者，每一种生物都是森林交响乐中不可或缺的音符。
2. 对自然共生关系的致敬
• 节目用极高精度的宏观与微观镜头，揭示了森林中超越人类想象的“网络连结”。比如树木之间通过地下真菌网络（俗称“树联网”）共享资源、传递警告，这种无私而智慧的共生机制，是对大自然智慧的最高赞歌。
3. 唤醒敬畏与反思
• 大卫·爱登堡（David Attenborough）爵士的解说一如既往地深情而充满力量。这一集不仅展示了森林的美丽，也毫不避讳地展现了人类活动给这些古老生态系统带来的危机。它不仅是致敬，更是一声警钟，呼吁人类重新审视自己与自然的关系。
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TVTranscript
00:38Forests at first sight may seem quiet and tranquil, but today we can explore them in new ways and from
00:59a new perspective.
01:02And in fact, they're full of unexpected connections, relationships and even secret messages.
01:24Only now are we discovering how strange and complex forests actually are.
01:52The rainforest of Borneo.
02:00A pair of Oriental pied hornbills are renewing their partnership.
02:11They mate for life.
02:22And this year's nesting season is just starting.
02:33Before they face the challenges ahead, they reaffirm their bond.
02:47And they do so with an unusual ritual.
02:53At the entrance to a bat cave that they know well.
03:23I don't know.
03:30This rather curious gift isn't normally on their menu but it most demonstrates devotion
03:42and reassures the female that her mate will provide for her.
03:55In the coming weeks she will depend on him in the most extraordinary way.
04:10Nesting is a dangerous time for any bird.
04:18The hole in this tree trunk will provide vital protection, just what she wants.
04:32Once settled inside, the female does something truly bizarre.
04:41She pulls out her flight feathers.
04:47She is not going to need them because she will be staying in here for quite some time.
04:59It's not only a little cramped, it also lacks basic amenities.
05:14Now her partner brings her a beak full of mud.
05:20And she begins to seal herself in.
05:39She has turned the tree hole into a predator-proof fortress.
06:03But it's also a prison.
06:34Her partner, however, is a woman.
06:36She is a regular visitor.
06:42For the next two months, he will deliver all her food directly to her door.
07:00But she can be fussy.
07:16He's going to have his work cut out.
07:18She is a part of her body.
07:24She's going to have to be filled out with her.
07:29She is going to have to go into a mantini, and she's going to have to be filled out with
07:48her.
08:25It may seem that he has been doing all the work, but she too has been fully occupied.
08:35The food he has brought has enabled her to produce two precious eggs.
08:46She will keep them safe for another six weeks until the young have grown and fledged.
08:56And then both she and they will break out of their confinement.
09:16But until then, this devoted couple are going to be very busy indeed.
09:41The warmth and the moisture of rainforests enables their inhabitants to flourish in both numbers
09:48and variety.
09:55And here in the Amazon live many strange species.
10:08This is a tree hopper, one of hundreds of different types in this forest.
10:25They not only have a bizarre appearance, but they also communicate in a remarkable way.
10:43Vibrating their bodies, they send signals through the forest plants they live on.
11:00Most of these messages we can only hear by using special microphones.
11:11Each tree hopper species has its own repertoire.
11:28And every sound has its own particular meaning.
11:41Whether it is to attract a mate, share information about food, or warn each other about the arrival of predators.
12:12This tree hopper mother communicates with her young, encouraging them to stay together so that she can protect them.
12:28For there are plenty here, waiting to eat young tree hoppers.
12:39Ants on the hunt.
12:51Ants on the hunt.
12:58Tree hoppers know how to defend themselves.
13:06But not all threats are so easily dealt with.
13:18An assassin bug.
13:23Armed with piercing mouthparts and sticky front legs.
13:35Capable of literally sucking the life out of her entire brood.
13:51She can try to block the assassin's path.
13:56But she can't guard them all.
14:00She needs help from friends in high places.
14:12Bees.
14:43They're very aggressive.
14:47This is more than the assassin bug bargained for.
14:53Mission accomplished.
14:57Her brood are safe.
15:01The bees don't protect the treehoppers for free.
15:06A little tickle on a treehopper's back.
15:11And they exude a sugary liquid.
15:19Honeydew.
15:24A sweet reward for protecting them.
15:39It's just one of the countless ways in which forest species work together.
16:05In the forests of India, you can hear a unique and truly extraordinary sound.
16:14Bees.
16:21These are doles.
16:26Wild dogs.
16:28That whistle.
16:29Learn more.
16:34Like treehoppers, they too communicate in secret.
16:38But for a different reason.
16:49Hunting in a dense teak forest is difficult,
16:55especially so if your prey is three times your own size.
17:05The only way for doles to succeed is to work as a team.
17:18This family has four growing pups.
17:46A chital deer could feed the entire pack.
17:58The pack must get close without being detected.
18:23But with eyes and ears everywhere, the deer are soon aware of the dog's presence.
18:45The pack can't afford to give up.
18:50They may have better luck here.
18:56The vegetation is dense and provides better cover.
19:03But the doles could easily lose track of one another, so they use their unique whistles.
19:28Only doles can understand these quiet, unobtrusive calls.
19:53Now, they take up their hunting positions.
20:03Even though they can't see each other.
20:27With the deer surrounded, the doles wait for the signal to attack.
20:54Some of the doles split the herd...
21:01and drive a stag towards others waiting in ambush.
21:09The forest might be dead.
21:10than that.
21:17I don't know.
21:18Verse 8, 1, 2, 3, and 2, 3, 4, 4, 3, and 5, 3, and 6.
21:21Good morning!
21:24Oh, you're listening.
21:25I don't know.
21:28What?
21:28After a new time,
21:29You don't know where there are.
21:30You're listening!
21:38The dog's ability to communicate so quietly enables them to stay connected and so hunt
21:45successfully in the tangle of their jungle, the mountainous forests of central China.
22:15Until recently, these were among the least known of forests.
22:23They're full of swirling mists and few outsiders had any idea of what they might contain.
22:37Living in such dense vegetation, it's difficult to make yourself seen.
22:43Even when you want to be.
22:47And that's a problem for this male Chemex Trachopan.
22:53He has lived most of his life alone.
22:59And this is his first mating season.
23:06He needs to make himself conspicuous in the gloom of the forest floor.
23:11And he's found a clearing where he might do so.
23:19A female.
23:32She, too, is looking for a mate.
23:37This could be his moment.
23:39A female.
24:05Oh, dear.
24:09Stage fright.
24:17And who is this?
24:22A male golden pheasant.
24:27He, too, has come to this clearing.
24:31To attract a female.
24:39And he seems a little more confident.
24:53And...
24:57And...
24:59Yeah!
25:02Oh!
25:03I...
25:07I...inä!
25:11I...
25:12...is how it's done.
25:18The dragopan might still have a chance.
25:22Here is a new female.
25:26But is she interested?
25:36It's time to be bold.
25:49He pumps up a pair of horns and a multi-coloured bib.
25:57It's a sight to be wondered at.
26:05And it has never before been filmed in the wild.
26:26I've seen a part of this that was so terrible.
26:26A pretty corporation was scared to be labeled as half carrying of the penguin.
26:27Sniffing.
26:27I don't have one other place.
26:28Um, you think it must change.
26:45Not today.
26:50How deflating.
27:08The temperate rainforests of Western Canada.
27:17Some of the trees here are a thousand years old.
27:40It's autumn and the beginning of a spectacle that each year transforms this forest and
27:47all that lives in it.
27:58After years at sea, thousands of Pacific salmon are returning to these streams to breed.
28:12And they attract the forest's rarest president.
28:36A spirit bear.
28:41A white variant of the black bear.
28:55Fewer than 150 exist and they're found only here.
29:10This female has fished for salmon here for 20 years.
29:15Now I have to benefit from the forest.
29:17Oh, there's no black bear.
29:29It's a real black bear.
29:32Well, there's no black bearват.
29:45All right, and there can be great rewards.
29:58In her youth, she was, in fact, even more successful than the black bears.
30:12Perhaps her pale coat makes it difficult for the fish to see her against the bright sky,
30:18and that could give her an advantage.
30:27But now she is old, and this year she's finding it hard.
31:01The fishing skills, however,
31:03haven't totally changed her.
31:10This annual feast helps her to fatten ready for the winter ahead.
31:21But it also helps the patch of forest where she lives.
31:27This female has an unusual relationship with the forest.
31:36Every fish carcassie leaves behind decays, releasing nutrients that soak into the soil.
31:50And there, they are collected by a network of fungi.
32:14The threads attach themselves to the tree's roots.
32:22And nutrients from the fish collected by the fungi are then passed on to the trees.
32:30As a consequence, the forest around the river grows three times faster than elsewhere.
32:46And some trees here become as tall as any in the world.
32:59and provide spirit bears with a healthy forest home.
33:21We now know that such relationships exist in forests all over the world.
33:32At the heart of these many connections stand giant trees like this one, a kapok.
33:44It started life as a seed some 200 years ago.
33:53Now it towers 60 meters above the forest floor and transports a thousand liters of nutrient-filled
34:03water from its roots up to its canopy every day.
34:16So this giant gives life to others.
34:29The whole community of animals and plants depends on the well-being of this one tree.
35:04This is what I can see.
35:21A single cut, made in just a few moments, has broken thousands of long-established connections.
35:39Across the world's forests, this story is being repeated endlessly.
36:00Fifteen billion trees are cut down every year.
36:17Every one of these trees is in itself an intricate ecosystem.
36:35But here in Brazil, they're being replaced by plantations of a single species of tree.
36:53Originally from Australia, these eucalypts are unable to build relationships with most of the native plants and animals.
37:11And worse, these newcomers grow so rapidly, they extract nutrients from the soil faster than they can be replaced.
37:30And what was once a rich and complex world becomes little more than a green desert.
37:41And what is it?
38:15And at just five years of age, their lives are ended.
38:24They're felled and taken away.
38:38Their wood is then pulped to make paper.
38:55And all that remains of the rich rainforest are a few tiny patches.
39:12Patches so small that few of the original inhabitants are able to survive in them.
39:27Uganda, East Africa.
39:41This small group of chimpanzees have a detailed knowledge of the forest territory that they inherited from previous generations.
40:02They know the best places to shelter, to raise their young, and to feed.
40:32This fruiting tree cannot by itself sustain the chimps for long.
40:57The alpha male signals that it's time to move on.
41:03The alpha male signals that it's time to move on.
41:08Where he goes, others will follow.
41:29He leads them not to another fruiting tree.
41:35But into a new world.
41:39But into a new world.
41:59This road, only recently built, has cut through their territory.
42:04This road, only recently built, has cut through their territory.
42:14The alpha male is cautious.
42:17The alpha male is cautious.
42:29The unfiltered tree.
42:51He makes sure it's clear before crossing with the slower members of his family.
43:17If the group is to get what they need, they will have to go against their natural instincts.
43:29And approach humans.
44:01But their new neighbors are friendly.
44:10And they allow the chimps to collect jackfruit, the largest of all tree fruits.
44:28Jackfruit grow all year round in people's gardens.
44:46And they're more nutritious than the limited amount of wild food the chimps can now find
44:53in what remains of their forest.
45:07But this is a new world and a new relationship.
45:18New boundaries need to be established.
45:25Some of the chimps start to help themselves to people's crops.
45:30New boundaries need to be established.
46:00New boundaries need to be established.
46:04New boundaries need to be established.
46:05They have outstayed their welcome, and the alpha male decides that it's time to leave.
46:34New boundaries need to be established.
46:35New boundaries need to be established.
47:05New boundaries need to be established.
47:05New boundaries need to be established.
47:05New boundaries need to be established.
47:12New boundaries need to be established.
47:14New boundaries need to be established.
47:14New boundaries need to be established.
47:22New boundaries need to be established.
47:26New boundaries need to be established.
47:29New boundaries need to be established.
47:33Surely the time has come to rebuild them.
48:01Over many years, I've been lucky enough to watch chimps in their natural home, such as here in the thick
48:08forests of West Africa.
48:11Chimpanzees. A peaceful scene of jungle harmony.
48:17The experienced male is sitting right there.
48:23But the lives of many chimpanzees are now changing dramatically.
48:43Here in Uganda over the last decade, they have lost over 80% of their forest home.
48:58They don't live in a protected area.
49:04To survive here, they have to live alongside the 200 or so human families who farm here.
49:14The chimps always come from the forest. They come to eat jackfruit from my land.
49:22They know us by our faces, as we know them by their faces and what else.
49:29To tell the story of this remarkable chimp group, the Planet Earth team are working with these residents.
49:43Who was that Tom?
49:45This one was a Raj.
49:48Tom is part of the Bulindi Chimpanzee and Community Project.
49:55He's been studying the chimps every day for the last 15 years and has seen the change firsthand.
50:05Very many things have changed.
50:07When chimpanzees were seeing people, they would run, run very quickly and go.
50:13But now they just stand.
50:16Because everywhere they go, they find a person.
50:23Chimps are normally tricky to film in the wild.
50:27But in this human world, the crew are surprised by how easy it is to approach them.
50:36Another one coming up, Park.
50:42But back in the forest, it's a different story.
50:50Here the chimps seem wary of the newcomers.
51:02There's a ditch there.
51:12All the crew get to sea.
51:17Here's a lot of bottoms.
51:21This afternoon, the chimps have been taking us on a wild goose chase.
51:26They've crossed the river and then they've crossed back.
51:29Gone past us while we were in the woods.
51:31And then, now they've disappeared again.
51:35When we don't have chimps, we film goats.
51:48Here in the chimps forest home, it's going to take time to earn the group's trust.
52:00And get to know one another.
52:02This is Jack.
52:06After two weeks, things are improving on the ground.
52:11But what will the chimps think of the crew up in the trees?
52:19You can see a bunch of chimp faces looking up at me.
52:23This is a new experience for them.
52:25I doubt they've ever seen a human in a tree before.
52:29So hopefully they accept me.
52:56After hours of waiting...
53:00success.
53:05All the chimps that were on the ground looking up at me are now happily in the tree, which
53:09is a really good sign that they've accepted me.
53:14It's the first time that they've been able to see at their level while they're feeding.
53:39For the crew, it has taken a long time to gain the chimps acceptance.
53:46But in fact, the chimps here have shown that they can respond quickly to the presence of people.
53:55Chimpanzees are highly intelligent.
53:58If you cut down the forest, well, chimps will start eating human crops.
54:04If you divide their range up with roads and, you know, the chimps will end up just learning to cross
54:11the roads.
54:14The animals can adapt to an increasingly human environment.
54:18The question is, can people accommodate an animal like a chimp?
54:33Chimpanzees can be dangerous.
54:38Living alongside them is a mixed experience.
54:58The local community and the project have been working together to try to decrease the impact of these problems.
55:11Over the last eight years, Lillian and her family have planted native seedlings on her land and left her patch
55:19of forest to regrow.
55:22If we cut it, they come and sleep in our houses.
55:25So we should leave that place for them.
55:31If you leave them and you don't disturb them, they are peaceful animals.
55:41With other residents following suit, more of the forest is showing positive signs of return.
55:53There is a long way to go and the future for these chimps remains uncertain.
56:03But where peaceful coexistence can be built, there is hope.
56:18Next time, animals battle the elements in a world of extremes.
56:28Where life exists on a knife edge.
56:34In Earth's greatest natural wonders.
56:44Habitat Explorer brings animals and their habitats to life.
56:47Explore this free interactive and make origami animals.
56:51Go to bbc.co.uk forward slash Planeta 3 and follow the links to the Open University.
56:57Or to order a free printed version, visit the website or call the numbers on the screen.
57:18Go to bbc.co.uk.
57:33Go to bbc.co.uk.
57:34Go to bbc.co.uk.