- 2 days ago
Documentary, Sea Monsters S01E03 - A Walking with Dinosaurs Trilogy- To Hell and Back
SeaMonsters, WalkingwithDinosaurs ,Dinosaurs
SeaMonsters, WalkingwithDinosaurs ,Dinosaurs
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AnimalsTranscript
00:00Megalodon, the biggest carnivorous fish that's ever lived.
00:09And it would be so fantastic if I could get this camera onto his back.
00:15I'm going to try from the platform, keep the bait ball above, watch the shark until you get it in a line along here.
00:22This is Nigel Marvin.
00:24He's a zoologist and an expert in tackling dangerous animals.
00:28But his latest adventure is really testing his nerve.
00:32He's left the safety of the 21st century behind and traveled back to prehistory.
00:38His mission, to visit the seven deadliest seas of all time and to come face to face with the most terrifying sea creatures that the Earth has ever known.
00:46So far he has made it through four prehistoric oceans, but ahead lie the two most dangerous.
00:53Inhabited by the nastiest collection of predators that nature has yet assembled.
00:57And he still has to get past a 50-foot shark called Megalodon.
01:02Megalodon.
01:03You idiot, don't move that chump back till you can see the shark.
01:28Push it up quick!
01:58I'm sorry, I'm sorry I called you an idiot, I was scared when I fell in but thanks mate.
02:17Fantastic, well done, I hope we get some shots with that.
02:31The camera was designed to break away from the shark and pop up to the surface.
02:35After a couple of days we picked up the signal.
02:38There it is, look, just ahead of us.
02:40Come on, we should have a precious and unique cargo.
02:50The camera seems okay, there's no damage here, a bit of shark fin.
02:54So what's happened is I either rubbed this off on rocks on the bottom or something.
02:57I just hope it was on long enough to get some really great footage.
03:11This was so exciting, the camera had survived whatever ordeal the shark had put it through.
03:20We were in the Pliocene observing a day in the life of a megalodon and if that wasn't fantastic
03:25enough this happened.
03:27It's a silhouette there, look, whether it's an odobinosa tops or whatever, you'll see that.
03:34And this could be great if we got a kill.
03:37He's going down.
03:39He is attacking, look!
03:41Crikey!
03:42Wow!
03:43Whoa!
03:44Look!
03:45I see that again.
03:48The footage we got with the shark camp, it's better than I could have ever hoped.
03:52It is so unique.
03:54Just watch this.
03:55The shark, it's down below, there's a shape up there.
03:58It's not an odobinosa tops.
04:00It's actually a species of whale.
04:02The shark's gone down so it can get more momentum when it attacks.
04:06It's accelerating now.
04:08And the violence of this impact, look at that!
04:11A cloud of blood, that's what knocked the camera off.
04:14And megalodon, this is extraordinary.
04:16It's a species of shark that actually attacks living whales and pretty big ones at that.
04:22But even this, the ultimate shark will be unable to defend itself from the coming Ice Age.
04:29As the oceans turn colder, whales, with their high body fat, will adapt and thrive and move up to the icy polar regions.
04:37Meanwhile, megalodon will be forced to stay in the warmer water around the equator.
04:42Deprived of its prey, it will be starved into extinction.
04:46It's time for Nigel to leave this, the third most dangerous sea behind.
04:55Next lies the Jurassic.
04:57To reach it, he has to travel back from 4 million to 155 million years ago.
05:03The Jurassic is right in the middle of dinosaur time.
05:08And it's home to some of the most colossal animals ever to live on land.
05:12Outweighed only by the monsters that live in the water.
05:16I've come to the Jurassic because this is a land of monstrous creatures.
05:41On the land, there are giant dinosaurs.
05:44And here in the water, well look at that.
05:50That's a shoal of Leeds and Keys.
05:52And they are the biggest fish that have ever lived.
05:57As big as those fish are, there are predators nearly as large that attack them.
06:03And that's what I'm here for, to see some of the most massive marine reptiles that have ever lived.
06:10And they must be 75 or 80 feet long.
06:28These shoals of giants are sustained by the tiniest creatures that live in the sea.
06:51What they do is they filter out any tiny plants and any small animals floating in the ocean.
06:57At this time of year, though, they're living on their fat reserves.
07:04And that really sorts out the healthy fish from the sick ones.
07:10You can see over there, there's one that can't quite keep up with the shoal.
07:15It's just at the edge there.
07:17Already it's attracting some of the smaller predators in these Jurassic Seas.
07:22And there, over there, Metriorhynchus, you just wouldn't expect that.
07:32It's a kind of marine crocodile.
07:34It's totally adapted for life in the sea.
07:37Great paddle-like feet, nothing like modern crocs.
07:42Look at the tail, there's no armour plating there.
07:45This creature has sacrificed defence for speed.
07:49Wait, that's just a bit close.
07:52Look at that.
08:05Below me, it's a most bizarre shark called Hippodas.
08:09See those strange horns on the top of its head.
08:13And it's going in to feast now.
08:18Look at it, twisting.
08:20Twisting to get a chunk of flesh.
08:24And, oh, you feel sorry for the Lijek feast.
08:27They're actually eating it alive.
08:29It's pretty unnerving being here right next to the shoal.
08:40You've got to worry about sharks, marine crocodiles,
08:44and I haven't even seen the really massive reptile I've come here for.
08:50But I wouldn't have long to wait.
08:52No large predators on the first dive, but there's certainly potential prey.
08:59This is the injured Lijekthes that we saw.
09:02We're tracking it with an acoustic tracking device,
09:04sending sound into the water.
09:06It's bouncing back off the injured fish.
09:08Not moving very fast, but we need to move to starboard now.
09:11Okay.
09:12Captain.
09:13As we saw on the dive, the injured Lijekthes,
09:15it's already drawing in crocodiles and sharks.
09:17And before long, something much bigger is bound to come in.
09:22Yeah.
09:23This is it.
09:24That four flippers, that short, compact neck.
09:25It's approaching the Lijekthes.
09:26It's nearly as big.
09:27That is colossal, and I'm sure this is Lypleuragon.
09:42It's the biggest carnivorous reptile ever,
09:44and it is closing down on the Lijekthes.
09:47We've got to get this.
09:49Peter, can you get the Polk out of me?
09:51Quick as you can.
09:52It's pretty deep.
09:53I don't look on the monitor.
09:54See if I can guide you.
09:55Go to the left a bit, mate.
09:56Just a bit further, a bit deeper.
09:58Just as I thought.
09:59It's a Lypleuradon.
10:00Look at those flippers.
10:01It's really had a go at the Lijekthes.
10:02It's not moving a fin.
10:03It must be dead now.
10:04We've scared it.
10:05It's disappearing into the Merc, Pete.
10:06This is fantastic.
10:07Well done, mate.
10:08Well done, mate.
10:09Those Lypleuradon are awe-inspiring sea monsters.
10:10It'd be such a thrill.
10:11It'd be such a thrill.
10:12to see them under the water.
10:13It'd be such a thrill to see them under the water.
10:15It's a Lypleuradon.
10:16Look at those flippers.
10:17It's really had a go at the Lijekthes.
10:18It's not moving a fin.
10:19It must be dead now.
10:20We've scared it.
10:21It's disappearing into the Merc, Pete.
10:22This is fantastic.
10:23Well done, mate.
10:24Thanks, mate.
10:25Those Lypleuradon are awe-inspiring sea monsters.
10:27It'd be such a thrill to see them under the water.
10:29But of course, I'd need some protection.
10:30And the technicians and I have come up with this.
10:33This is a smell suit.
10:35Lypleuradon, they've got a really acute sensation.
10:37It's a smell suit.
10:38It's a smell suit.
10:39It's a smell suit.
10:40It's a smell suit.
10:41It's a smell suit.
10:42It's a smell suit.
10:43It's a smell suit.
10:44It's a smell suit.
10:45It's a smell suit.
10:46It's a smell suit.
10:47It's a smell suit.
10:48Lypleuradon, they've got a really acute sense of smell.
10:51And we're going to use that to protect me.
10:53What we do is put a bottle on here, a bottle of noxious chemical.
10:57And if the Lypleuradon get too close, if things get a little hairy, I'll switch on this valve.
11:02There'll be an explosion of chemicals into the water.
11:05The chemical we're using is called putrescine.
11:07That's basically essence of rotting reptile flesh.
11:11And hopefully, that will keep them away from me.
11:14So why did we decide on putrescine?
11:17Have a look at this.
11:18We did some field trials with young Lyopleuradon in shallow water.
11:22We put the smell suit around a dummy, weighted it down, put it on the bottom.
11:30And you can see they're putting squid right in the suit.
11:33And that's to actually get the Lypleuradon excited.
11:35Try to get a feeding frenzy and see how they'll react to the smell suit.
11:39And now it was a matter of waiting.
11:42In the first experiment, inside the smell suit, there was a chemical deterrent that keeps sharks away.
11:48And we wanted to see what would happen with these reptiles.
11:52They're very, very curious about these squid.
11:55See the release of the chemical there?
11:57Absolutely no effect at all.
11:59You'd have had your head bitten off if you'd been wearing that.
12:02The next experiment, we filled the smell suit with putrescine.
12:05And let's see what happens here.
12:07There's still squid on the dummy.
12:08They know it's not a danger to them.
12:10Here they come.
12:11Here come the Lyopleuradon.
12:12See that?
12:13The putrescine's released.
12:14Another one comes in, mouth open, just gives it a whack.
12:17I hope it doesn't whack me like that.
12:19But hopefully that will give me some protection when I go in with the adults.
12:32As I thought, a Lypleuradon, perhaps even a pair of them, have come back to the carcass.
12:37We've lost the light, but that doesn't matter to those animals.
12:40They live in a world of smell.
12:42We've got lights so we can see it's going to be spooky down there though.
12:46And I'm relying on the smell suit to protect me.
12:48The cameraman's got one too.
12:51I'm going to swing her out.
13:16Oh my goodness.
13:17That's enormous!
13:18Well I am so glad the film camera's in.
13:19Nobody would believe me back at home.
13:20I am so glad the film camera's in.
13:21Nobody would believe me back at home.
13:22I am so glad the film camera's in.
13:23I am so glad the film camera's in.
13:24Nobody would believe me back at home.
13:25I am so glad the film camera's in.
13:26I am so glad the film camera's in.
13:27Luke is next to another.
13:30I am so glad the film camera's in.
13:34I am so glad the film camera's in.
13:35I am so glad the film camera's there.
13:40The film cameras here, nobody would believe me back at home.
14:01That's a cracking view of those teeth, they are so distinctive.
14:05That rosette of really sharp teeth at the front of the jaws there.
14:09They are like knife blades.
14:12They are piling into that fish carcass.
14:15Slicing through the flesh of that leetic piece,
14:18and that short neck that helps them to be more powerful.
14:22That's why they can twist off those chunks of flesh.
14:34But what I'm going to do, they're not paying any attention to me.
14:37That food is really keeping them occupied.
14:43So I think I can take a calculated risk.
14:46If they do go for me, I've got the smell suit.
14:49So I'm going to move in as close as I dare.
14:53I am just 20 feet away from a feeding frenzy and some really ferocious sea reptiles.
15:08But I am petrified watching this.
15:19Wow, it's coming in so close!
15:21Ah!
15:25Thank heavens this smell suit works!
15:27But it's really time to get out of here!
15:38Hold on Nigel, you're not done yet.
15:41That was the second most dangerous sea.
15:44Which means time to enter Hell's Aquarium, the most dangerous sea ever.
15:49It's just a short hop forwards from the Jurassic to 75 million years BC.
15:55Not long before a massive meteor plows into the planet and marks the end of the dinosaurs.
16:04That same cataclysmic event will also be the end of most of the sea monsters that we're about to meet.
16:10A familiar sight on the coast of the Cretaceous, these birds are called Hesperonis.
16:36They are so vociferous it's deafening being right in the middle of a colony.
16:42They're flightless like penguins, but they're far from as cute.
16:46Look at those dagger-like bills, and inside there they've actually got teeth.
16:53But just to hold their own, Hesperonis, they have to be tough.
16:57They're around at a time when there are truly awe-inspiring predators.
17:00On the land there's T-Rex, and in the water, well every time Hesperonis go on a fishing trip,
17:07they have to enter the deadliest sea of all time.
17:10So why is this sea more deadly than the others?
17:22It's because there's not just one predator here, there's a whole suite of them.
17:26There's frightening sharks, terrifying sea reptiles, even the fish in here,
17:31you couldn't imagine them in your worst nightmares.
17:33I call this Hell's Aquarium, it's so jam-packed with killers.
17:39And this is where Hesperonis spend much of their life.
17:43They're amazingly well adapted for diving, with specially heavy bones to help them stay submerged.
17:49But few Hesperonis live to a ripe old age, because in this sea there are so many ways to get eaten.
17:55To the right a bit, to the right a bit.
18:06Oh my goodness.
18:11Keep going right.
18:13There's a real blood patch.
18:17Pass the periscope, please.
18:20With this I should be able to have a peek into this blood bar.
18:23Hard to see what's going on there.
18:26There is such a flurry of activity down there.
18:31There's a shark from right in the middle of the feeding frenzy.
18:35Don't know what species, there's many sharks in Cretaceous times.
18:38What?
18:40What is that?
18:42That is one grotesque fish.
18:44And that's more like a bulldog than a fish.
18:47If the devil kept fish, this would be one of them.
18:49Xiphactinus, a predatory fish over 20 feet long.
18:54There's a big one coming right at the periscope.
18:59It's got a Hesperonis in its mouth.
19:02Hesperonis there over six feet long.
19:04And it's swallowing it down in one go.
19:07But there was something else in there that looked familiar.
19:12The ominous shape of a mosasaur.
19:15These I'd read about.
19:17They're the ruling class of marine reptiles in the Cretaceous.
19:21Their serpentine shape is no accident, as they're closely related to snakes.
19:27But they're far more ferocious and way, way bigger.
19:29This species near the coast is just a tiddler.
19:40A mere ten feet long.
19:42But offshore lurks 60 foot giants.
19:45And that's where we were headed.
19:47We're going into deeper water on our mission to find giant mosasaurs.
20:01We're actually sailing right over the top of Kansas, which sounds weird.
20:06This is the map of the US that we're used to seeing.
20:09But now in the Cretaceous, it's totally different.
20:11Look at that.
20:12The central United States are covered by a vast inland sea.
20:16I can't dive in that sea.
20:18Mosasaurs are much too dangerous.
20:20And up here, to give us early warning, the acoustic tracking device.
20:25And we've got cameras on the prow of the boat.
20:28This is the view from the forward facing one.
20:31This is the view from the backward facing one.
20:33If a mosasaur comes anywhere near this ship, we'll get views on video.
20:37But this is something we are particularly proud of.
20:39This is a remote operated vehicle with a superb camera.
20:44It would be foolhardy for me to swim with mosasaurs.
20:47But we're hoping we can get this right alongside them.
21:00We soon had company.
21:02With its huge size and characteristic crest, this could only be one thing.
21:05Not a bird, but a flying reptile called Pteranodon.
21:15They catch fish in these waters.
21:17But this is Hell's Aquarium.
21:20So occasionally, the fish catch them.
21:22The next morning, we were in for a nasty surprise.
21:36What the heck was that?
21:37We hit something with a tremendous clunk.
21:49And look, it's the body of a turtle, like no turtle alive in the 21st century.
21:54It is huge.
21:55I think it's an archelon.
21:57And you can see, look, it has been bitten in two.
22:01And it's a shame.
22:02I'd love to see one of those of us alive.
22:05But it proves that we're in giant mosasaur country.
22:09Nothing else could have done damage like that.
22:10And on we sail through Hell's Aquarium, watching and waiting for giant mosasaurs.
22:25Nigel, this is interesting.
22:26Check this out.
22:27There's creatures.
22:28And they are going right under the boat.
22:29This could be it.
22:34Not a giant mosasaur.
22:36These are some of the most exciting of sea reptiles.
22:38I've always wanted to see these.
22:40Elasmosaurus.
22:41That was the front camera.
22:43And this is the camera facing backwards.
22:44Look what they're doing.
22:46They're riding our bow wave.
22:47They're saving energy, just like dolphins do.
22:49Maybe these are migrating or something.
22:53You stop the boat.
22:55We had to be quick.
22:57But this was a perfect way to do the boat.
22:59And it's not a giant mosasaur.
23:01These are some of the most exciting of sea reptiles.
23:04I've always wanted to see these.
23:05Elasmosaurus.
23:06That was the front camera.
23:07And this is the camera facing backwards.
23:08Look what they're doing.
23:09They're riding our bow wave.
23:10They're saving energy, just like dolphins do.
23:11It's a perfect opportunity to try out the ROV.
23:13With its remotely operated camera.
23:20Oh, Greg, they're not scared of it at all, are they?
23:22Right to the ROV.
23:23They're diving.
23:24Can you go deeper?
23:32They're coming really close.
23:34Look, this one's investigating.
23:37Look away.
23:39Those small heads on those long necks may be a way to deceive prey.
23:43Fish would be frightened by those big bodies.
23:45But what the Elasmosaurus can do, they can sneak those heads right in the middle of a shoal.
23:50And then strike.
23:52Gosh, a living arch along.
23:55One of those giant turtles.
23:58I said that I couldn't dive in this sea.
24:00It's just too dangerous.
24:02But I've got to get in with that.
24:03It's a bit risky going in here, but the ROV should be guarding me, keeping an eye out for any predators lurking around.
24:13And I just can't resist a ride on an arch along.
24:19And he must come up again for air soon.
24:43From here to the Bulls.
25:05Nigel, back peak.
25:06Better get him out of the water, there's something big on the cracker.
25:17Okay, we've just got to find him first.
25:19We're on our way out.
25:24We've got to find Nigel, there's something down there.
25:30Quickly.
25:36I'm so relieved.
25:59I'm back on here.
26:02I'll tell him we're coming back.
26:11Ancient Mariner.
26:12Ancient Mariner, Nigel here.
26:14How was the dive, Nigel?
26:16It was a thrill to be riding the turtle, but at the end, that was scary.
26:20We're on our way back now, Captain.
26:23Okay, Nigel.
26:24What?
26:25Can you see him on the ROV, Greg?
26:33The ROV had seen it all.
26:39We're on our way back now.
26:48Perhaps mistaking the boat for a turtle, the top predator of the Cretaceous had honed in
26:53on the crew.
26:54And if there's one thing worse than swimming with a 60-foot carnivorous reptile, it's swimming
27:00with its family.
27:02Giant Mosasaurs often travel in groups to protect their young.
27:09They will attack and eat virtually anything that moves.
27:11Sharks, turtles, giant squid, even other Mosasaurs.
27:16With three humans and an upturned boat in the water, they were spoiled for choice.
27:21So far, they were choosing the boat.
27:51Of the seven deadliest seas of all time, this was the worst.
28:08Thanks.
28:09Everyone okay?
28:10And the worst was over.
28:12Shut me up.
28:13There's still blood in the water there as well.
28:16Almost.
28:21No?
28:22No?
28:26Thank you again.
28:27Thank you again.
28:29Thank you very much, everybody.
28:31Why are we so happy?
28:32You know, We all gotㄹ and Japanese-你有
28:46done us many years ago.
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