David Attenborough

"I don't know [why we're here]. People sometimes say to me, "Why don't you admit that the hummingbird, the butterfly, and the Bird-of-Paradise are proof of the wonderful things produced by Creation?" And I always say, "Well, when you say that, you've also got to think of a little boy sitting on a riverbank, like here, in West Africa, that's got a little worm, a living organism, that's in its eye and boring through its eyeballs and is slowly turning it blind. The creator God that you believe in, presumably, also made that little worm." Now I personally find that difficult to accommodate and so therefore [sic] when I make these films, I prefer to show what I know to be the facts, what I know to be true, and then people can deduce what they will from that."

"I often get letters, quite frequently, from people who say how they like the programmes a lot, but I never give credit to the almighty power that created nature. To which I reply and say, "Well, it's funny that the people, when they say that this is evidence of the Almighty, always quote beautiful things. They always quote orchids and hummingbirds and butterflies and roses." But I always have to think too of a little boy sitting on the banks of a river in west Africa who has a worm boring through his eyeball, turning him blind before he's five years old. And I reply and say, "Well, presumably the God you speak about created the worm as well," and now, I find that baffling to credit a merciful God with that action. And therefore it seems to me safer to show things that I know to be truth, truthful and factual, and allow people to make up their own minds about the moralities of this thing, or indeed the theology of this thing."

"If we [humans] disappeared overnight, the world would probably be better off [making the point that the reverse is not true]."

"People who accuse us of putting in too much violence, [should see] what we leave on the cutting-room floor. My conscience troubles me more about reducing the pain and savagery that there is in the natural world than the reverse."

"In moments of great grief, that's where you look and immerse yourself. You realise you are not immortal, you are not a god, you are part of the natural world and you come to accept that."

"I don't think any human society is prepared to make decisions which they may not like if they're made by people who don't speak the same language... It's very easy, as we all know, to be very tolerant of minorities until they become majorities and you find yourself a minority. It's easy to say 'Oh yes, these lovely people – I love the way they wear such interesting costumes.' You know, that's fine until some day you find that they're actually telling you what to do and that they've actually taken over the town council and what you thought was your home was not. I'm not supporting it; I'm saying it's what it is."

"We must change our diet. The planet can’t support billions of meat-eaters."

"We are going to have to live more economically than we do. And we can do that and, I believe we will do it more happily, not less happily. And that the excesses the capitalist system has brought us, have got to be curbed somehow."

"This City in Ukraine was once Home to almost 50 thousand people. It had everything a community would need for a comfortable life. But on the 26th of April 1986, it suddenly became uninhabitable. The nearby Nuclear Power Station of Chernobyl exploded. And less than in 48 hours the city was evacuated. No one has lived here since"

"Trade is a proper and decent relationship, with dignity and respect on both sides."

"The Roman public's thirst for blood and pleasure in witnessing pain seems to have been unquenchable and without limit. The caged animals were kept in dungeons below the main arena. The terrified animals in their cages were hoisted up from this pit. And not only animals, human beings too, criminals, slaves and prisoners of war. And here in this arena they were set one upon the other to provide the crowd with spectacles of the most appalling carnage. It still continues to this day in Spain."

"And yet, today the harbour is silted up, most of the city lies buried beneath sand dunes and the land has become a desert. As the population had grown and more people wanted more fields, so more of the forest that once stood around the city was cut down, until eventually it was all gone. With no roots to hold the soil, and no attempt to conserve it, it was carried away by the wind and the rain."

"And this is where it went. In places all around the eastern Mediterranean the sea is separated from the mainland by strips of flat marshy land like this. Made up of the soil that once clothed the hills beyond. All this was deposited during the last 2000 years. This is the marsh that now separates the sea from the city of Ephesus. These ruined buildings mark the edge of the quay where once merchant ships lay moored. As the harbour died, so did the trade upon which the city's wealth was based, and so, well, ultimately did Ephesus itself. What was once one of the most splendid cities in the Roman Empire fell into decay and was abandoned."

"It used to be said, that in places like this, nature eventually failed to support man, the truth is exactly the reverse, here man failed to support nature. Ten thousand years ago man regarded the natural world as divine, but as he domesticated animals and plants so nature lost some of its mystery and appeared to be little more than a larder that could be raided with impunity."

"There are some four million different kinds of animals and plants in the world. Four million different solutions to the problems of staying alive. This is the story of how a few of them came to be as they are."

"This is the last programme in this natural history, and it's very different from all the others because it's been devoted to just one animal: ourselves. And that may have been a very misleading thing to have done. It may have given the impression that somehow man was the ultimate triumph of evolution, that all those thousands of millions of years of development had no purpose other than to put man on Earth. There is no scientific evidence whatsoever for such a belief. No reason to suppose that man's stay on Earth should be any longer than that of the dinosaurs. He may have learned how to control his environment, how to pass on information from one generation to another, but the very forces of evolution that brought him into existence here on these African plains are still at work elsewhere in the world, and if man were to disappear, for whatever reason, there is doubtless somewhere some small, unobtrusive creature that would seize the opportunity and, with a spurt of evolution, take man's place. But although denying a special place in the world may be becomingly modest, the fact remains that man has an unprecedented control over the world and everything in it. And so, whether he likes it or not, what happens next is very largely up to him."

"Our planet, the Earth, is, as far as we know, unique in the universe. It contains life. Even in its most barren stretches, there are animals. Around the equator, where those two essentials for life, sunshine and moisture, are most abundant, great forests grow. And here plants and animals proliferate in such numbers that we still have not even named all the different species. Here, animals and plants, insects and birds, mammals and man live together in intimate and complex communities, each dependent on one another. Two thirds of the surface of this unique planet are covered by water, and it was here indeed that life began. From the oceans, it has spread even to the summits of the highest mountains as animals and plants have responded to the changing face of the Earth."

"Immensely powerful though we are today, it's equally clear that we're going to be even more powerful tomorrow. And what's more there will be greater compulsion upon us to use our power as the number of human beings on Earth increases still further. Clearly we could devastate the world. […] As far as we know, the Earth is the only place in the universe where there is life. Its continued survival now rests in our hands."

"The savage, rocky shores of Christmas Island, 200 miles south of Java, in the Indian Ocean. It's November, the moon is in its third quarter, and the sun is just setting. And in a few hours from now, on this very shore, a thousand million lives will be launched."

"If you watch animals objectively for any length of time, you're driven to the conclusion that their main aim in life is to pass on their genes to the next generation. Most do so directly, by breeding. In the few examples that don't do so by design, they do it indirectly, by helping a relative with whom they share a great number of their genes. And in as much as the legacy that human beings pass on to the next generation is not only genetic but to a unique degree cultural, we do the same. So animals and ourselves, to continue the line, will endure all kinds of hardship, overcome all kinds of difficulties, and eventually the next generation appears. This albatross is over 30 years old, she's already a grandmother, and this year once again she has produced a chick. She will devote the next 10 months of her life looking after it. She has faced the trials of life and triumphed, for her little 2 day old chick the trials are just beginning."

"I am at the very centre of the great white continent, Antarctica. The South Pole is about half a mile away. For a thousand miles in all directions, there is nothing but ice. And, in the whole of this continent, which is about one-and-a-half times the size of the United States and larger than Europe, there is a year-round population of no more than 800 people. This is the loneliest and coldest place on Earth, the place that is most hostile to life. And yet, in one or two places, it is astonishingly rich."

"At a time when it's possible for thirty people to stand on the top of Everest in one day, Antarctica still remains a remote, lonely and desolate continent. A place where it's possible to see the splendours and immensities of the natural world at its most dramatic and, what's more, witness them almost exactly as they were, long, long before human beings ever arrived on the surface of this planet. Long may it remain so."

"Midwinter, and the countryside is so still, it seems almost lifeless. But these trees and bushes and grasses around me are living organisms just like animals. And they have to face very much the same sort of problems as animals face throughout their lives if they're to survive. They have to fight one another, they have to compete for mates, they have to invade new territories. But the reason that we're seldom aware of these dramas is that plants of course live on a different time-scale."

"Ever since we arrived on this planet as a species, we've cut them down, dug them up, burnt them and poisoned them. Today we're doing so on a greater scale than ever […] We destroy plants at our peril. Neither we nor any other animal can survive without them. The time has now come for us to cherish our green inheritance, not to pillage it – for without it, we will surely perish."

"Wallace's emotions on discovering such marvels must surely be echoed by all of us who follow him. This is what he wrote: "I thought of the long ages of the past during which the successive generations of these things of beauty had run their course. Year by year being born and living and dying amid these dark gloomy woods with no intelligent eye to gaze upon their loveliness, to all appearances such a wanton waste of beauty. It seems sad that on the one hand such exquisite creatures should live out their lives and exhibit their charms only in these wild inhospitable regions. This consideration must surely tell us that all living things were not made for man, many of them have no relation to him, their happiness and enjoyment's, their loves and hates, their struggles for existence, their vigorous life and early death, would seem to be immediately related to their own well-being and perpetuation alone.""

"Birds are the most accomplished aeronauts the world has ever seen. They fly high and low, at great speed, and very slowly. And always with extraordinary precision and control."

"The island is immense. It's 1,000 miles long, if you discount a narrow arm of sea that crosses it in the middle, and it contains mountains over 12,000 feet high. It's New Zealand. The first land-living mammals to get here were human beings and they didn't arrive until a mere 1,500 years ago. So here you can glimpse what the world would have been like if the birds had won that battle with the early mammals and now ruled the Earth, for here they once did."

"Many of New Zealand's birds flew here from Australia fifteen hundred miles away across the sea to the west. They started to do so millions of years ago, and they are still doing so today... So, if you know Australian birds, you will recognise quite a lot, particularly those that are relatively recent arrivals."

"[The Kiwi.] It's the bird equivalent of a badger."

"How is it that [birds] can withstand the pull of gravity that keeps the rest of us tied so firmly to the ground? The secret is a wing with a thick, rounded front edge that curves gently downwards toward the back edge which is very thin. As thin, in fact, as a feather. As the bird glides forward, the air flowing under the wing is impeded by the wing's downward curve so it becomes slightly compressed, and that pushes the wing up. At the same time, the air flowing across the top of the wing is deflected upwards by the wing's front edge, so reducing its pressure. If the air is moving fast enough, then the slight suction from above, combined with the push from beneath will be enough to lift the bird into the air [...] and ample to keep it aloft."

"Its heart that in flight contracted a thousand times a minute, slows until its beat is virtually undetectable. Its body temperature falls dramatically, and its breathing seems to cease altogether. [...] It's hibernating; but for a hummingbird, winter comes 365 times a year."

"As the last thermals of summer start to rise, the birds [hawks and vultures] circle up to great heights, 10,000 feet or more, to give themselves a good start for the long journey ahead. As they glide southwards, slowly losing height, they will look for another thermal and make for its base so that, once again, they will be lifted high enough to reach the next."

"Without thermals, [raptors] can't travel far. But the snow geese fly on... They navigate by the stars."

"I'll bet when our prehistoric ancestors first dug for tubers and planted seeds in Europe, one of these little robins appeared within a couple of days. Other animals must have done the same job for them before human beings did. Once, not so long ago, wild pig were common all over Europe, and they're great diggers and rootlers. So maybe the robin's boldness and friendliness with other kinds of animals started in prehistory, even before human beings arrived in Europe."

"Living on the bodies of mammals, oxpeckers manage to get quite a varied diet. A maggot here, a tick there, a little sip of blood, perhaps a little tasty earwax."

"A spider. Quite big enough and succulent enough to provide a snack for a Scops."

"It's equally astonishing that the birds are able to measure its relative strength with such accuracy that they can trace it back to its source simply by sensing in which direction it becomes marginally stronger. But a turkey vulture is exceptionally well-equipped among birds, with wide-open nostrils and extremely well-developed sense organs within them."

"Those that live in the air have to fight in the air."

"Even though hunters have a formidable armoury and great skill, most of their hunting trips... end in failure."

"The food-chain that sustains a meat-eater could scarcely be shorter than it is here. [...] Algae that can uniquely tolerate these salty waters proliferate in the sunshine by the ton. Flamingos filter the algae from the water with their beaks, and vegetable is turned into flesh. And that flesh is food for eagles."

"Mallards must be one of the most familiar birds in the world. Because of that, perhaps we tend to take ducks for granted. But in fact, they are a very varied family."

"Members of the auk family, such as these guillemots and puffins... propel themselves, not with their feet like ducks, but with their wings, and they have paid a considerable price to be able to do so... Auks have had to evolve shorter, stubbier wings. That gives them a rather clumsy, whirring flight in the air, but it does enable them to "fly" underwater so well that they can outpace small fish."

"Penguins underwater look somewhat like dolphins, and indeed the two families have similar evolutionary histories. Dolphins are descended from air-breathing land animals, just as penguins are descended from air-breathing flying animals. Both subsequently took to swimming for their food. They became beautifully adapted and streamlined. And now, both are superlative swimmers and highly accomplished fishermen."

"To many of us, however, this is the most delectable of natural sounds. It's an hour before dawn, it's spring, this is an English woodland. All around, the dawn chorus. It's so familiar that perhaps we take it for granted."

"You might think that a hornbill would have the most powerful excavation tool of all, but in fact its huge beak is a relatively delicate structure and no use at all as a chisel."

"The battle between cuckoos and other birds is a continuing one. The cuckoos developing new stratagems and perhaps finding new victims, and the victims finding new defences."

"Each [pelican] has already survived many perils in its young life. As a chick, it fought battles with its brothers and sisters and won."

"No sooner has one been pushed out of the nest then a second will follow, until there is only one left. And that's what happens nearly always in a pelican's nest. That being the case, it seems rather inefficient, not to say heartless, that the pelican should always lay three eggs. But the reason is that it's partly an insurance policy, in case something terrible happens to one or two of the chicks, there's always a third left to carry on. And partly because, very rarely, when the fishing is very good, it is possible to raise more than one chick."

"[African Rift Valley soda lakes]. Steaming-hot water comes from volcanic springs and is so loaded with soda that around the margins of the lake it solidifies into white curds. Yet flamingos come here in thousands. [...] The fact that so few creatures can tolerate these conditions means that any animal that can, has the place to itself and so can proliferate in vast numbers."

"All over the world, birds [...] manage to survive in the most hostile of places. A century ago, a completely new kind of environment appeared on Earth. Nothing like it had faced birds before in their entire 200 million year history. Yet some species began to adapt to it almost immediately... The modern city."

"Birds were flying from continent to continent long before we were. They reached the coldest place on Earth, Antarctica, long before we did. They can survive in the hottest of deserts. Some can remain on the wing for years at a time. They can girdle the globe. Now, we have taken over the Earth, and the sea, and the sky. But with skill and care and knowledge, we can ensure that there is still a place on Earth for birds in all their beauty and variety, if we want to, and surely, we should."

"Sensing the approaching danger, the snail flees. But in a world of snail paces, the conch is something of a Ferrari. It calls for desperate measures. Exhausted by the effort of its last-ditch attempt, the tulip snail is slowly... gunned... down."

"Warm-bloodedness is one of the key factors that have enabled mammals to conquer the Earth, and to develop the most complex bodies in the animal kingdom. In this series, we will travel the world to discover just how varied and how astonishing mammals are."

"Three and a half million years separate the individual who left these footprints in the sands of Africa from the one who left them on the moon. A mere blink in the eye of evolution. Using his burgeoning intelligence, this most successful of all mammals has exploited the environment to produce food for an ever-increasing population. In spite of disasters when civilisations have over-reached themselves, that process has continued, indeed accelerated, even today. Now mankind is looking for food, not just on this planet but on others. Perhaps the time has now come to put that process into reverse. Instead of controlling the environment for the benefit of the population, perhaps it's time we control the population to allow the survival of the environment."

"An eye from another world; a smell-detector, investigating the path ahead. We don't often see a snail that way, and that's because we've only recently had the tiny lenses and electronic cameras that we need to explore this miniature world. But when we meet its inhabitants face to face, we suddenly realise that their behaviour can be just as meaningful to us as the behaviour of many animals more our own size."

"If we and the rest of the backboned animals were to disappear overnight, the rest of the world would get on pretty well. But if they were to disappear, the land's ecosystems would collapse. The soil would lose its fertility. Many of the plants would no longer be pollinated. Lots of animals, amphibians, reptiles, birds, mammals would have nothing to eat. And our fields and pastures would be covered with dung and carrion. These small creatures are within a few inches of our feet, wherever we go on land – but often, they're disregarded. We would do very well to remember them."

"Reptiles and amphibians are sometimes thought of as primitive, dull and dimwitted. In fact, of course, they can be lethally fast, spectacularly beautiful, surprisingly affectionate and very sophisticated."

"Reptiles and amphibians are sometimes seen as simple, primitive creatures. That's a long way from the truth. The fact that they are solar-powered means that their bodies require only 10% of the energy that mammals of a similar size require. At a time when we ourselves are becoming increasingly concerned about the way in which we get our energy from the environment and the wasteful way in which we use it, maybe there are things that we can learn from "life in cold blood.""

"This is the Earth - our planet, home to millions of different species, but only one species dominates everything - human beings. There are nearly seven billion of us living on the Earth, and the human population is increasing by more than two people every second; two hundred thousand people every day; nearly eighty million people every year. Each additional life needs food, energy, water, shelter, and hopefully a whole lot more. m0s0-m0s43"

"Today we're living in an era in which the biggest threat to human well-being, to other species and to the Earth as we know it might well be ourselves. The issue of population size is always controversial because it touches on the most personal decisions we make, but we ignore it at our peril. m0s50-m1-13"

"I was born into a world of just under two billion people today there are nearly seven billion of us. Whenever I hear those numbers I can honestly say I find it incredible, triple the number of human beings in what seems like the blink of an eye and the world transformed utterly. Human population density is a factor in every environmental problem I have ever encountered, from urban sprawl to urban overcrowding; disappearing tropical forests to ugly sinks of plastic waste, and now the relentless increase of atmospheric pollution. I've spent much of the last 50 years seeking wilderness filming animals in their natural habitat and, to some extent, avoiding humans. But, over the years, true wilderness has become harder to find. m1s58-m3s03"

"I can't pretend that I got involved with filming the natural world fifty years ago because I had some great banner to carry about conservation - not at all, I always had a huge pleasure in just watching the natural world and seeing what happens. - I made those films because it was a hugely enjoyable thing to do. But as I went on making them it became more and more apparent that the creatures that were giving me so much joy were under threat. The fun is in delighting in the animals but if you do that you owe them something so you have an obligation to speak out and to do what you can to protect them. m3s08-m4s05"

"I support a group called the Optimum Population Trust which campaigns to reduce birth rates because I think, if we keep on growing, we're not only going to damage nature but we're likely to see even more inequality and human suffering. m4s08-m4s43"

"Human beings are good at many things, but thinking about our species as a whole is not one of our strong points. m4s45-m4s53"

"Just as the human population was starting its unprecedented growth spurt in the late eighteenth century, this was published. It's a first edition of an essay on population by the English clergyman Thomas Malthus. Malthus made a very simple observation about the relationship between humans and resources and used it to look into the future. He pointed out that "the power of population is indefinitely greater than the power of the earth to produce subsistence for man. "Food production can't increase as rapidly as human reproduction. Demand will eventually outstrip supply. Malthus goes on to say, if we don't control human reproduction voluntarily, life could end in misery, which earned him a reputation as a bit of a pessimist. But Malthus' principle remains true. The productive capacity or the Earth has physical limits and those limits will ultimately determine how many human beings it can support. m10s58-m12s18"

"In Rwanda children inherit land from their parents but in a country where the average family has more than five children that can only mean one thing – smaller parcels of land to live off. m30s00-m30s12"

"As I see it humanity needs to reduce its impact on the Earth urgently and there are three ways to achieve this: we can stop consuming so many resources, we can change our technology and we can reduce our population. We probably need to do all three. m31m37-m31s56"

"For most people the idea of someone else telling them how many children they should have is simply unacceptable so when governments attempt to do just that it always causes controversy. In 1979 the Chinese government introduced its infamous one-child policy, changing family life in China forever. Families were encouraged to have fewer children. Those that didn't were fined. The policy was a direct response to the preceding decades of famine and starvation. It's still in place today. According to official figures, without the one-child policy, there'd be four hundred million more people in China, that's more than the entire population of the USA. Its unlikely that other governments could undertake such an extreme path without major civil opposition. In the 1970s the Indian government also sought to bring down its birthrate. To start with it took a less aggressive path, setting up festivals around the country where vasectomies were carried out for small incentives. m31s56"

"In the south west of India lies the long narrow coastal state of Kerala. Most of its thirty-two million inhabitants live off the land and the ocean, a rich tropical ecosystem watered by two monsoons a year. It's also one of India's most crowded states - but the population is stable because nearly everybody has small families... At the root of it all is education. Thanks to a long tradition of compulsory schooling for boys and girls Kerala has one of the highest literacy rates in the World. Where women are well educated they tend to choose to have smaller families... What Kerala shows is that you don't need aggressive policies or government incentives for birthrates to fall. Everywhere in the world where women have access to education and have the freedom to run their own lives, on the whole they and their partners have been choosing to have smaller families than their parents. But reducing birthrates is very difficult to achieve without a simple piece of medical technology, contraception. m35s09-m38s21"

"It seems to me that an understanding of the natural world is crucial for all of us – after all we depend upon it for our food, for the air we breath and, some would say, for our very sanity. Its a relationship that we're stretching to breaking point as we continue to grow in numbers. m44s31-m44s57"

"I'm very aware that this programme may be regarded as bleak or depressing - an increasing population with an ever decreasing supply of resources – but humans have capabilities that animals don't: to think rationally; to study; to plan ahead. The number of people on the planet depends on the personal decisions we each make regarding the number of children we have even setting aside the moral responsibility we have to protect other species, if we continue to damage our ecosystem, we damage ourselves. Its clear that we'll have to change the way that we live and use our resources. We're at a crossroads where we can chose to cooperate or carry on regardless. Can our intelligence save us? I hope so. m46s24-m47s15"

"And they noticed what few others had done – that all over the world, charismatic animals that were once numerous were beginning to disappear. The Arabian oryx, which once had been widespread all over the peninsula had now been reduced to a few hundred. In Spain, there were less than a hundred imperial eagles. The Californian condor was down to about sixty. In Hawaii, a goose that had lived in flocks on the lava fields around the great volcanoes were reduced to fifty. The strange little rhinoceros that lived in the dwindling forests of Java – to about forty. Wherever you looked there were examples of animals whose populations were falling rapidly. This planet was in danger of losing a significant number of its inhabitants – both animals and plants."

"Fifty years ago, when the WWF was founded there were about three billion people on earth. Now there are almost seven billion. Over twice as many - and every one of them needing space. Space for their homes, space to grow their food (or to get others to grow it for them), space to build schools and roads and airfields. A little of that space might be taken from land occupied by other people but most of it could only come from the land which, for millions of years, animals and plants have to themselves."

"Make a list of all the environmental and social problems that today afflict us and our poor battered planet. – not just the extinction of species and animals and plants, that fifty years ago was the first signs of impending global disaster, but traffic congestion, oil prices, pressure on the health service, the growth of mega-cities, migration patterns, immigration policies, unemployment, the loss of arable land, desertification, famine, increasingly violent weather, the acidification of the oceans, the collapse of fish stocks, rising sea temperatures, the loss of rain forest. The list goes on and on. But they all share an underlying cause. Every one of these global problems, environmental as well as social becomes more difficult – and ultimately impossible - to solve with ever more people."

"I don’t like rats but there’s not much else I don’t like."

"To suggest that God specifically created a worm to torture small African children is blasphemy as far as I can see."

"I'm not an animal lover if that means you think things are nice if you can pet them, but I am intoxicated by animals."

"The thing about a bush baby is that the male establishes its territory by peeing on his hands and putting it all on the walls. And after you've had a pair for about six months, you can see people coming into the house, sniffing and going: ‘Now, that’s definitely not mulligatawny soup.’"

"If you understand about the natural world, we’re a part of the system and you can’t feed lions grass. But because we have the intelligence to choose… But we haven’t got the gut to allow us to be totally vegetarian for a start. You can tell by the shape of our guts and the shape of our teeth that we evolved to be omnivores. We aren't carnivores like lions but neither are we elephants."

"Sinking beneath the waves is a very surreal experience. Your first instinct is to hold your breath. At night, the reef is a ghostly world. Tiny shrimplike creatures dance in the lights. ... with little light, there is a lot less colour. But this is still a magical place."

"The coral's stinging armoury isn't used only for collecting food; they also use it to fight. As has been discovered only comparatively recently, corals, like many animals that live on land, are extremely territorial. But in order to see the battles, you have to speed up time."

"Right now we are facing a man-made disaster of global scale, our greatest threat in thousands of years: climate change. If we don’t take action, the collapse of our civilisations and the extinction of much of the natural world is on the horizon."

"Our imprint is now truly global. Our impact now truly profound. Our blind assault on the planet has finally come to alter the very fundamentals of the living world."

"We have overfished 30% of fish stocks to critical levels. We cut down over 15 billion trees each year. By damming, polluting, and over-extracting rivers and lakes, we've reduced the size of freshwater populations by over 80%."

"We're replacing the wild with the tame. Half of the fertile land on earth is now farmland. 70% of the mass of birds on this planet are domestic birds. The vast majority, chickens. We account for over one-third of the weight of mammals on earth. A further 60% are the animals we raise to eat. The rest, from mice to whales, make up just 4%."

"This is now our planet, run by humankind for humankind. There is little left for the rest of the living world."

"Since I started filming in the 1950s, on average, wild animal populations have more than halved. I look at these images now and I realize that, although as a young man I felt I was out there in the wild experiencing the untouched natural world... it was an illusion. Those forests and plains and seas were already emptying."

"Um, so, the world is not as wild as it was. Well, we've destroyed it. Not just ruined it. I mean, we have completely... well, destroyed that world. That non-human world is gone. Uh.... The... Human beings have overrun the world."

"Tyrannosaurus rex, an animal to spark the imagination for all of us. What kind of an animal was it? What did it look like? How did it live? Now, scientific research has answered such questions, and not just about T. rex, but the other species that lived alongside it. And the latest imaging technology enables us to bring them all… to life."

"But for Hatzegopteryx, the beach is a launching pad. Now his wings will carry him to yet another forest, where life proliferates more variously and more abundantly, than anywhere else on our prehistoric planet."

"I have always been entranced by Attenborough’s wildlife programmes, but astonished by his consistent failure to mount a coherent, truthful and effective defence of the living world he loves."

"In my view, the most environmentally damaging item ever carried on any medium in this country was a two-part documentary broadcast in 2006 titled, without irony, The Truth about Climate Change. It was presented by the most trusted man in Britain', Sir David Attenborough, whose word was treated as gospel. Somehow it managed not to mention the fossil fuel industry at all, except as part of the solution: 'the people who extract fossil fuels like oil and gas have now come up with a way to put carbon dioxide back underground'. Carbon capture and storage is a classic oil-industry talking point, always promised, never delivered, whose purpose is to justify continued extraction. Instead of fossil fuel interests, another force entirely was blamed for accelerating greenhouse gas emissions: the $1.3 billion Chinese'. No other cause was named in the series. It immediately triggered a new and virulent form of climate denial that quickly spread around the planet and persists to this day: there is no point in taking action here or anywhere else, because the Chinese are killing the planet."