Video	Source	Machine translation	Reference
	dodo funny	It's funny, isn't it?	The dodo.
	funny extinct celebrate	It's funny, isn't it?	Comical, ugly, ridiculous... and extinct.
	model human wipe specie	It's one of the most endangered species in the world.	The most celebrated example of how human beings can wipe out other species.
	dodo ongoing	Dodo is ongoing.	But the dodo is not alone.
	work now	I'm going to have to do some work now.	It is part of an ongoing process.
	world earth man manmade no right	It's not just a man-made earth, it's not a man-made earth.	For right now, the Earth is in the middle of a man-made mass extinction.
	specie save safe	It's one of the most endangered species in the world.	No species is safe.
	disaster within	It's a disaster, isn't it?	But it doesn't have to be that way.
	power stop	I'm not going to stop you.	It is within our power to stop this disaster.
	to can dodo	Dodo, dodo, dodo!	And if we don't, it could be we all end up like the dodo.
	watch look the-earth life face seem	It's like watching the Earth and you're going to have to face it.	When you look at the Earth teaming with life, it seems absurd to think that it's teetering on the brink.
	time struck hundred last the-earth earth wipe about	In the last 100 years, the earth has been wiped out by the Earth.	But life is fragile, and several times over the last 500 million years, the Earth has been struck by catastrophes that have wiped out most of the life on the planet.
	call mass	I don't know, I'm going to call it a day.	They call them mass extinctions.
	done old evidence killer	There's no evidence of the killer whales.	If the causes have sometimes been mysterious, in others, the killer left plenty of evidence.
	sixty five million ago world the-earth world struck earth	60 million years ago, the Earth struck a chord with the Earth.	65 million years ago, the Earth was struck by an asteroid.
	part go storm nuclear winter stable dinosaur follow out wipe fire half	In the winter, when the dinosaurs came out, they wiped out half of the dinosaur population.	The fire storm and nuclear winter that followed killed off the dinosaurs and wiped out half the species from what had seemed to be a stable world.
	world	It's not just about the world.	Catastrophic as it was, it wasn't the worst mass extinction to strike the Earth.
	extinction back far departure die lift	So far, we're going to go back to extinction.	For that, you need to go back even further in time.
	search record identify five hundred	We've identified 500 of them.	Looking through the fossil record, palaeontologists have identified five such extinction events.
	happen end year call and two million fifty ago zone	At the end of the year, we're in a zone called 2.5 million years ago.	The most devastating happened at the end of an era called the Permian, 250 million years ago.
	found	I've found you.	This is the dead zone.
	happen life	What's happened to your life?	This zone represents what it was like here after the mass extinction.
	embed search anything zone anything life live	I've never seen anything like it in my life.	We have never found anything that represents life in this zone.
	plant soil zone animal	We've got plants, we've got soil, we've got plants, we've got plants, we've got animals.	There is no evidence of plant life, there is no evidence of soils and especially there is no evidence of animals.
	no dead	I don't know.	This is completely dead.
	never history everything completely	I've never seen anything like it before.	Never in the history of the planet was there a catastrophe that was so widespread, so devastating, so all-inclusive.
	luxury rich die desert lift site	It's a very rich place.	We were going from this very rich place to a biological desert.
	exit planet	It's one of the most dangerous places on the planet.	From a place like a rainforest, to a place that is composed of a few species, eking out an existence.
	send on specie wipe five	I'm going to send them to you and I'm going to wipe them out.	95% of the species on the planet were wiped out.
	planet from satellite area orbit catch whole today	Today, we're on the planet, and we're going to be able to see a whole range of satellites from all over the world.	The probable source of this devastation didn't come from outer space, but from within the planet itself.
	akela siberia area million but fire whole	But in Siberia, millions of people were killed in the whole of the country.	Today, Siberia is an icy wasteland, but 250 million years ago, the whole area caught fire.
	bunch have eruption	It's like a bunch of giant eruptions, isn't it?	You'd get a huge eruption and another and another, and maybe a lull, and then another bunch of ten, and then another.
	thousand	That's right.	All together over a few hundred thousand years.
	find go develop know pose cluster million anything	We've got a cluster of millions of them.	The Earth is almost continuously spewing out lava until after a million years or so, millions of cubic kilometres have erupted.
	lava wrong see visit	It's called lava.	So this a truly gigantic volcanic object - thousands, tens of thousands of times larger than anything man has ever seen.
	eruption make making make the-earth earth	It's an eruption that's making the most of the Earth's atmosphere.	The first effect of the eruption was to make the Earth much colder.
	cold colder winter year winter enter event form record enter volcanic dust nand sulphur weather cool	In the colder months of the year, the volcanic dust has entered the coolest form of sulphur, sulphur and sulphur.	First, we will enter a winter, a volcanic winter.
	atmosphere address go volcano also	It's not just the atmosphere of the volcano, it's also the atmosphere of the volcano.	The dust and the sulphur will cool the atmosphere after each eruption for years, or tens of years.
	also call carbon quick dioxide same time wind global ball worldwide warming seamount measure clock go freeze event rally sum track label amount effect	It's called carbon dioxide, but it's also about the same amount of time as the global warming season.	But the volcanoes also spat out huge amounts of carbon dioxide, which led to a devastating process called global warming.
	unusual dioxide replace cold hot get double	We've got to replace the carbon dioxide we've got to replace the cold carbon dioxide we've got here.	The carbon dioxide will lead to a greenhouse effect and the cold will be replaced by unusual hot time.
			So you get a double hit.
			You are cold for a while.
	hot year different	It's a bit hot, isn't it?	And then hot for a longer time.
	year different	They've been here for many years.	..So that, all together, after a million years, the Earth would be different.
	different happen climate would sight	It would have been a very different climate.	The climate would be different and a mass extinction would have happened.
	evidence happen worldwide world global the-earth world thing	And there's no evidence of what happened to the Earth.	Here is the evidence of how serious global warming can be.
	how six out happen quick	I'm going to show you how to get out of here and see how quickly it's going to happen.	But the ominous thing is that, as we speak, the Earth is going through a sixth mass-extinction event.
	faster before past let sink disaster	Let's have a go.	One that is happening faster than any of the disasters of the past.
	come high crisis one hundred hundred probably thousand before humanity see visit specie	We've probably seen hundreds of thousands of species in the UK before, but we've probably never seen one before.	The extinction rate is at crisis proportion, perhaps 100 to 1,000 times higher than before humanity came along.
	earth lost along quarter could quarter determine decade	A quarter of the Earth's population could be lost.	We see pretty clearly that we could lose a quarter of the species on Earth in the next several decades.
	perhaps end next century half but	It's the end of the century, perhaps, but it's the end of the century.	If nothing were done, perhaps half of the species by the end of the century.
	crisis	It's a crisis, isn't it?	That's a crisis.
	crisis disaster natural	It's a disaster for the natural world.	But this crisis hasn't been caused by a meteorite or a volcano or any natural disaster.
	homo cause	It's a homo, isn't it?	This one is entirely down to one cause... homo sapiens.
	work hand surprise	It's a bit of a surprise, isn't it?	Wherever we go, extinction inevitably follows.
	surprised surprising behaviour surprised break bear return	But it's not surprising that their behaviour is not surprising.	It's not surprising, given the way we behave.
	worse anything thing contact personality to course	Of course, the worst thing is, of course, you've got to contact people.	It seems the worst thing any species can do is to come into contact with people.
	lesson dodo great	Dodo's a great lesson.	And that, of course, is the big lesson of the dodo.
	manmade human example	It's a man-made example of how human beings work.	The dodo is the classic example of man-made extinction.
	happen island ago mauritius paradise ocean event post space target	A few years ago, Mauritius was in paradise.	It all happened 400 years ago on the paradise island of Mauritius in the Indian Ocean.
	seem to see	I'm looking forward to this.	Today, it seems an unlikely place for a mass murder.
	one watch bone hundred	You've got hundreds of bones in there, haven't you?	But these excavations are the first to look for dodo bones in 120 years.
	see out find one-hundred chicken chick bird chicken parrot bird hen extinct	I've seen hundreds of birds extinct in the UK.	And in the mud, they're finding the remains of hundreds of the extinct birds.
	determine render search help swindon man arrival arrive	I've arrived at Swindon, where I've been looking for help from a very young man.	What they're revealing is helping to paint a picture of Mauritius before man arrived.
	julian hume area and history museum environment world	'I'm meeting Julian Hute, 'who's been fascinated by the history of this area.'	Julian Hume is a palaeontologist at the Natural History Museum.
	dodo address go	I'm going to dodo it.	A world expert on dodos, and the environment they lived in.
	arrival mauritius look meet man island	I've arrived at Mauritius Island and I've come to meet a man who knows all about life.	This is Mauritius as it may have been before man arrived.
	place today on different-from specie	Today, we're looking at things linked by different species.	As you can see, it's very very different from what we imagine the place to be today.
	sugar cane everywhere tree forest animal	It's a sugar cane, it's everywhere, it's everywhere, it's everywhere.	Today, sugar cane is everywhere, all of these forest tree species have gone and, unfortunately, most of the animals as well.
	giant tortoise like thousand	It's like a giant tortoise, isn't it?	Before humans arrived, it would have been dominated by things like giant tortoises, found in their thousands.
	this take	I'm going to take a look at this.	Other reptiles as well.
	ct snake firstly great run one	This is one of the most venomous snakes in the world.	Skinks, this big terrestrial species here, snakes as well.
	isp specie special bird chick chicken bird hen parrot course environment key	And, of course, it's a very special environment for the birds.	And in this very special environment we had one very special bird, that is, of course, the dodo.
	specie it one original bird chick chicken hen parrot chicken couldnt	It's one of the most endangered species of bird in the world.	It would have been a key species in that original environment.
	mile bird turn	It's not just birds that are deadly to me, but birds that are deadly in their own world.	A mile walk through Mauritius would probably have turned up 50 to 100 birds.
	whole everything and mauritius	And Mauritius.	But then, in 1598, everything changed.
	arrival sailor	I'm a sailor.	Humans arrived.
	holland	I'm on my way to Holland.	Sailors from Holland.
	start	Yeah.	And the slaughter began.
	arrival arrive unfortunately	Unfortunately, he's arrived.	The minute man arrived on Mauritius, the dodo unfortunately was doomed.
	man desperate ill scurvy	The men were desperate for scurvy.	These were desperate men, scurvy was rife, many were sick, they were starving.
	island rife man arrival think thought two other	I thought it was rife, but I thought it would be rife, so I'm going to have to wait for the rest of the island to arrive.	When they arrived on the island, there were only two thoughts going through man's mind.
	and two one	One, two, three, four, five, six, seven, eight.	One - can they catch it?
	food dodo	It's a dodo, isn't it?	And two - can they eat it?
	eat feed picnic select fact board	In fact, it's not just the food that's on board.	We know for a fact that men ate dodos.
	meat study twenty fifty	It's a study of over 20 species of meat.	There are reports of them being taken on board 20 or 50 at a time.
	chicken	It's a chicken.	But dodo was not the sought-after gain.
	try totally tell dodo	I'm going to try and tell you what I'm going to do.	We know that some of the mariners who tried the meat absolutely despised it.
	greasy big fat fatty	It's greasy, it's fat, it's greasy, it's fat, it's fat, it's fat.	They said it was greasy, and fatty, and totally inedible.
	bad	It's not bad.	The more they boiled it, the worse it became, the tougher it became.
	say to dodo devastate enough	And I said, "I'm going to dodo this, I'm going to do it."	So it is a myth that the dodo was eaten to extinction.
	less myth save change	The myths and legends of the time have changed.	But tasting foul was not enough to save it.
	human	It's not just humans that are deadly to me.	For humans brought other less direct but more devastating changes to the island.
	on found determine mouse witness exotic animal see never see cat	I've never seen any exotic animals in my life.	Unfortunately, animals were introduced, exotic animals that had never been found on Mauritius before.
	deer cat knew pig pork pig worse ship boat ship rat turkey and food	It's not a deer, it's a cat, it's a cat, it's a cat, it's a cat, it's a cat, it's a cat, it's a cat, it's a pig, it's a rat.	These included cats, deer, goats, pigs and the worst culprit of all, and inadvertently escaped from ships, was the rat.
	spread scatter tree forest source mdf cycle disturb chicken bird attack egg wild nest chick also chick competition ran	They've spread across the forest and they're also disturbing birds, so they're also disturbing the source of their nests.	These animals spread through the forests, ran wild, and started competing with dodos for their food source, probably attacking eggs and chicks, and also disturbing the nesting cycle of these birds.
	bird chick hen select dodo	I'm going to take a look at some of the birds.	All the time, humans were confined to the coast.
	animal	It's not just animals that are deadly to me.	They probably weren't seeing dodos at all.
	animal whole foot human	It's not just animals that are deadly to me, but animals that are deadly in their own world.	The warfare against the dodo and the other species on Mauritius was taking place the whole time within these unoccupied areas of Mauritius.
	eighty deadly mauritius entourage dodo done within	In the 1980s, Mauritius was on the Deadly 60.	Within 80 years of humans and their deadly entourage setting foot on Mauritius, the dodo was gone.
	symbol personal to affect planet	It's a symbol of the personal impact of the planet.	A symbol of man's power to affect the planet.
	dodo begin six human	In the meantime, dodo six human beings began to emerge from the brink of extinction.	But the dodo wasn't the beginning of this sixth great mass extinction.
	earth modern lead die function lift post width airport island	It's one of the most modern airports on Earth.	It's been going on as long as modern humans have wandered the Earth.
	out space target area site turn animal discharge location departure the-earth	We're going to have to find out what's going on here.	Once, huge land animals roamed the wild places of the Earth.
	thousand herd sensual woolly ago america	A few thousand years ago, a woolly herd of animals was hunted to extinction in America.	10,000 years ago, great herds of woolly mammoths strode across North America.
	year great	It's been a great year.	Then, humans showed up.
	australia ago and unit wombat giant forty size	A couple of years ago, I was in Australia, a giant wombat, about 40 years ago.	In Australia 40,000 years ago there were giant lizards and wombats the size of horses.
	go arrival year but person last giant	But last year, the giants arrived.	But they didn't last long after people arrived.
	zealand flightless zero bird ago one thousand	In New Zealand, there are more than 1,000 birds left in the UK than 1,000 years ago.	And in New Zealand, giant flightless birds called moas survived untroubled until just 1,000 years ago.
	again	I'm going to have to do it again.	And then it happened again.
	and continent animal hunter arrow within little child wipe animal spear out	They wiped out the continent with little spears and arrows and spears and arrows.	On each continent, within just a few hundreds years of arriving, these small groups of primitive hunters wiped out all the large animals with little more than spears and bows and arrows.
	primitive and seem no seem reasonable personal pass human whilst event	It seems to me that it's not a reasonable event, but it's not a human being, it's not a human being, it's a human event.	Whilst there is no hard and fast evidence that humans are to blame, there doesn't seem to be any other reasonable explanation.
	find correlation happen arrive arrival let	Let's find out what happens when the correlations arrive.	The one correlation around the world is that the extinctions happened whenever humans arrived.
	ct guess analogy spring think	I think it's a sort of analogy, isn't it?	Let me give an analogy.
	suppose seven been los angeles say murder suicide john smith in build builder building enter	In 1787, John Los Angeles said he was murdered by John Smith.	Suppose there were 37 unsolved murders in Los Angeles, and you can establish that each of those 37 murders happened just after a certain person, John Smith, entered a building.
	visit thirty john learn nothing gun think zero	I've never seen a gun like this before, I've never seen anything like this before.	That would probably be enough circumstantial evidence to convict John Smith of murder even though we didn't see him shooting the gun at each of those 37 people.
	whenever area same to personal arrive forty four hundred ago america thirteen country enough past ago zealand one thousand year alongside arrival arrive country only	Whenever I arrived here, I was in America, about 14,000 years ago, and I was in New Zealand and I was in New Zealand.	On the same grounds, the fact that these extinctions around the world happened whenever humans arrived in the area, arriving in Australia 40,000 years ago, in the Americas 13,000 years ago, in New Zealand 1,000 years ago, that, I think, is enough to convict humans.
	land find country pose large great area discharge site human now elephant africa to evolve human	It's one of the largest land sites in Africa, and now it's home to one of the largest human beings in the world.	One of the only places you will find large land animals now is in Africa where they evolved alongside humans.
	elephant choose on rhino	It's not just elephants that are deadly to me.	Elephants and rhinos have learned how to live with, and avoid, people.
	address life learn avoid longterm life live survive survivor turn spirit threat	But it's a long-term threat to the lives of survivors.	But even these long-term survivors are now under threat.
	hippo event see	It's not just the hippos that are deadly in their own world.	Just look at what is happening to the hippos.
	recently past reasonably	It's been reasonably recently.	Up until recently, they were reasonably abundant.
	red akela meat ready endangered	The red squirrel is an endangered species.	But they've made it onto the Red List, the list for endangered animals.
	even	I don't even know what to say.	The reason for that is...
	democratic republic large congo big world global world living hippo population thirty five thirty ten	It's one of the largest democratic states in the world, the largest population of hippos in the Congo in the whole of the world.	In the Democratic Republic of Congo they'd the second-largest population in the world, there were 30,000 hippos living in that country.
	ten decade ninety decimate within population animal ivory	In the last decade, 90% of the population of ivory was destroyed.	Within the space of ten years, 95% of that population were wiped out for meat and for ivory.
	large	It's the largest animal in the world.	So, within a decade, that population was decimated.
	effect everything large	It's got a really large effect.	And it's not just the large animals any more.
	everything suffering suffer human personal human worse	It's not just human suffering, it's suffering, it's suffering, it's not bad.	Almost everything is suffering from the effects of humans.
			And it's getting worse.
	see fifty mdf specie excess rate anything die endangered every everyone world everything mammal learn	We're looking at about 50% of the world's endangered species, and we're going to see if there's anything in the excess of anything in the world.	We are now seeing rates of extinction of maybe 50 to 150 species per day are disappearing off the face of the Earth.
	number historically	Historically, it's a bit of a problem.	That is far in excess of anything we have seen historically.
	red list read show twenty planet watch thing three eight bird	The red team have shown me a list of eight birds on the planet.	In the recent Red List, they were showing that 25% of all mammals on the planet are endangered, one in three amphibians will go, one in eight birds.
	endangered really even rate course thought	Of course, they're really endangered.	So these are things we are accustomed to seeing and they're highly endangered.
	fast faster nand	The faster you go, the faster you go, the faster you go.	The current rate of extinction is even faster than the Permian.
	tell said say anything worry	I don't know what to say.	Of course, there is a school of thought that says we really don't have anything to worry about.
	nature natural naturally nature read competition part	It's not just about nature, it's about nature, it's about nature, it's about competition.	They say that nature is all about competition and extinction is just a natural part of that process.
	history museum monument animal nature some	It's a museum of some of the most ancient monuments in the history of the animal kingdom.	Natural-history museums the world over are monuments to animals that have lost their battle with nature.
	ever great earth great good the-earth no	No, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no, no	Some of them were the greatest ever to walk the Earth.
	two three year thousand million	It's been around for 2,000 years.	We have a fossil record which goes back for no less than 3,000 million years.
	enter function go return support travel record go always question	I'm going to ask you a question.	It tells us beyond any question that species always eventually go extinct.
	extinct normal evidence beyond why	There's a lot of evidence beyond that.	It is a normal, inevitable part of the process of evolution.
	percent percentage ever alive today one one thousand thousand know	I don't know if it's ever been alive today, but I don't know.	We don't know what percentage of the species which ever lived are still alive today but 1%, maybe 1 in 1,000, as few as that.
	extinct something ever go zero	It's not something that's ever going to be extinct in the UK.	All the rest have gone extinct.
	nine ninety percent animal life now last on specie	Last year, 90% of the UK's wild animals live on the farm.	Over 99% of all of the creatures that have ever lived are now extinct.
	contact human	You can't have contact with humans.	And most of them never came into contact with humans.
			Even the top dogs, the species which look like they'd go on for ever, were all eventually snuffed out.
	example give	That's a good example.	Let me give you an example.
	hundred million animal call animal name call reptile like mammal ct classroom	It's called a reptile classroom, and it's not just animals that are mammals.	Up to about 200 million years ago, there was a group of animals called the mammal-like reptiles.
	earth far	It's far from home, but it's far from home.	They were far and away the dominant terrestrial animals walking the surface of the Earth.
	one away animal creature carnivorous see visit image	It's a carnivorous creature, and it's a carnivorous creature.	This is an example of one of these creatures which was clearly carnivorous.
	tooth find witness canine check	I'm going to go and see if I canine my teeth.	You can see the wonderfully sharp teeth and the big canines.
	like animal adult clip image initiative learn think understand time herd	It's the first time I've ever seen an animal like this before.	Its main prey would have been things like this animal here - the herbivores of the time.
	out graze africa ever prospect sort	This is the sort of view that we're going to be grazing in Africa.	They would be living in big herds, they would be grazing, a little like the sort of mammals one would see in the savannah in Africa today.
	rather little would today great would scene	It's a great scene, isn't it?	The scene would look rather like that.
	what suppose group finish which	I suppose that's what we're supposed to do.	One would have supposed they would last for ever.
	two million new dinosaur	This is about two million years old.	By about 200 million years ago, a new group had appeared, which we call the dinosaurs.
	adapt life land	It's not just animals that are adapting to their lives.	They seem to have been better adapted at life on land.
	choose select reptile dinosaur like extinct mammal mount take sink quickly drive strike	They're like dinosaurs, reptiles, dinosaurs, dinosaurs, dinosaurs, dinosaurs, and they're going to take a very, very, very quickly.	And, relatively quickly, the mammal-like reptiles had disappeared, gone extinct, and the dinosaurs had taken over.
	lesson happen really	I don't really know what's going to happen.	The lesson from this would seem to be that extinction just happens.
	nothing can anyone	I don't think anyone can do it.	And there is nothing anyone can do about it.
	animal creature survive hundred million year seem	It's a creature that's survived for over 100 million years.	There are a few exceptions - creatures which have survived for hundreds of millions of years.
	but explain still survive	But it's still a story.	But there seem to be no common features that explain why they're still here.
	horseshoe crab unchanged year kill virtually million	It's virtually unchanged for millions of years.	Horseshoe crabs have been virtually unchanged for 300 million years.
	survive mature kill far dinosaur climate change unchanged ice	As far as the dinosaurs survived, the climate changed.	They've survived the Permian disaster, the asteroid that killed the dinosaurs, climate change, ice ages and, so far, humanity.
	disaster teach can feel live survival survive read	It teaches you how to survive the survival of your animals.	Scientists have spent years trying to find out if they can teach us about survival.
	year perhaps	I've been doing it for years.	But with no success.
	probably can allow change find	I'll probably be able to find out what's going on.	We can perhaps say that it was its adaptability, its resistance to predation, which allowed it to survive.
	quite control manage survive survival change alteration certainly really true really evolution conversion adaptation mystery	It's quite a mystery, really, isn't it?	Quite why it managed to survive the environmental changes over this long period of time is, I have to say, really quite a mystery.
	maybe chance natural survival lucky course	And, of course, there's no chance of survival.	So perhaps, in the natural course of events, extinction and survival is just a matter of chance.
	happen suggest pattern work current some	The current pattern suggesting that some of the patterns that we're going to be able to work out what's going on.	There are patterns in this current extinction that suggest there is more than just luck at work.
	vulnerable human particularly one	They are particularly vulnerable to humans.	That some animals are particularly vulnerable to human activity.
	factor single weak	It's the weak factor, isn't it?	And one factor is clearer than any other.
	fact	In fact, it's a lot of fun.	All of these creatures lived on islands quite happily number the arrival of humans.
	island	It's an island, isn't it?	In fact, the isolation probably helped them survive.
	evolution world also cope perfect	It's also the perfect way to cope with the world.	But island life is also the evolutionary equivalent of moving to a gated retirement community.
	have arrive example see one same	I've got a few examples of what we've got here.	Once you have been there for a while, you lose the ability to cope with the outside world.
	example forebear dodo pigeon completely	For example, dodo pigeons and pigeons, it's a completely different story to our forebears.	Once again, the dodo is the perfect example.
	and dodo million chest later pigeon beak pigeon	A few million years later, the pigeon's chest was laid out.	The dodo's forebears looked like this Nicabar pigeon when they first arrived in Mauritius.
	wing change adapt what perfectly	It's a perfectly adapted wing.	A million years of evolution later and that pigeon was completely unrecognisable.
	lost	I don't know.	The wings had all but gone, the beak had grown, and the chest had puffed out.
	chick dodo	I'm going to dodo it.	Today, it looks comic.
	actually home	I don't know.	But the dodo was perfectly adapted to its island home.
	bird chicken hen chicken bird to produce well skirt	Well, we've got some chickens here.	Why would something like the dodo lose the ability to fly?
	term no	I don't know.	Well, actually, to produce flight is very expensive in terms of energy for birds.
	land imagine pigeon like mauritius volcanic island flight isolated food predator time no fly get somewhere	They've got to be somewhere like Mauritius, and they've got to be isolated, so they've got to be able to fly off to the island, somewhere like this.	Now, imagine an ancestral pigeon landing on somewhere like Mauritius, an isolated volcanic island, no predators, all the food it requires is on the ground, it doesn't need to fly.
	require fat skirt upwelling weight could store	It's not just the big skirts that require a lot of weight, it's a lot of money.	The bird could get fatter, store more weight and, over time, evolve into this giant ground pigeon.
	receive	You've got to be careful, haven't you?	The dodo was beautifully adapted to its island home.
	arrive island	I've arrived on the island.	But once humans arrived, it couldn't adapt quickly enough to the changes they brought.
	specialise adapt cannot	They cannot adapt.	The dodo had become specialised.
	island arrival dodo cope	The Dodo Islands are full of surprises, but they're not the only ones to cope with.	Predators from elsewhere arrive on the island, the dodo cannot cope.
	short change evolution year change become cannot what history explain history narrative story	It cannot be changed, it cannot be changed, it hasn't changed, it hasn't changed history.	It cannot change millions of years of evolution in a very short time.
	story world around-the-world global world modern worldwide specie	This is the story of how the modern world came to be.	It's a story that has been retold on islands around the world.
	half around	It's been around half an hour.	More than half of the species that have become extinct in modern times lived on islands.
	life	It's a real life, isn't it?	..Until they were visited by humans.
	become island chick chicken hen chicken bird parrot dodo flightless most	It's become a dodoless island, and it's become one of the most common birds in the world.	Many of them, like the dodo, were flightless birds.
	island one two specie	There are two species on the island.	Most oceanic islands had one or two species.
	almost	It's almost impossible to say.	Now, they are almost all gone.
	ct rail island hawaii survive extinction	In Hawaii, there's a new kind of rail that's survived the extinction of the island.	Some, like this Laysan rail from Hawaii, survived into the 20th century.
	bird	It's a bird's nest.	Before they scuttled off into extinction.