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Biggest Whales on the Planet


What's The Largest Thing To Ever Live On Earth? DEBUNKED

We look at the largest things to have ever lived on our planet, and it doesn’t stop with the Blue Whale or the Patagotitan!

Join us as we debunk one of the biggest misconceptions in the world!

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BIGGEST Sea Creatures Around The World!

Check out the biggest sea creatures around the world! This top 10 list of largest ocean animals on earth features some crazy monsters lurking in the deep sea!

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10.) Fin Whale
The fin whale is the second largest creature on Earth after the blue whale. It has been severely affected by commercial whaling and now it is rare to see one. If you have seen one, consider yourself lucky! They can grow as long as 89 feet (27 m) in length and can weigh between 40 to 80 tons! The maximum ever recorded weighed in at 114 tons!! They can live to be over 100 years old if left alone.
The fin whale’s body is built for speed and it can even go faster than the fastest ocean steamship. It’s capable of speeds of up to 37 km/h but can go short bursts of even 47 km/h, earning it the nickname “greyhound of the sea”.
Fin Whales have a very unique coloring with the right underside of their jaw, right lip, and the right side of their baleen being a yellowish-white, while the left-side is gray, making them look asymmetrical. Fun fact, fin whales and blue whales make the lowest frequency sounds of any animals. When they were first recorded by submarines, scientists thought they were tectonic plates grinding. Kind of makes you wonder about what is causing other mysterious ocean sounds!

9.) Portuguese Man of War
While this is often considered a jellyfish, the Portuguese man-of-war is actually not an “it” but a “they”! It is made up of a colony of organisms called polyps that work together known as a siphonophore. While the tentacles can extend 165 feet (50 m), the average is about 30 feet (9 m) long. Still nothing to scoff at!!
Also known as “the floating terror”, their body is between 5 inches to a foot wide (13 cm- 130 cm). They are usually found in groups of about a thousand or more, and have no independent means of movement. They either drift on the currents or catch the wind, so even though you should be super careful of jellyfish, they aren’t ever out to get you on purpose! The tentacles on a man-of-war are extremely venomous and very painful if you get stung but they are rarely deadly. The venom is typically used to paralyze their prey, such as small fish and other smaller creatures. Also keep in mind that a man-of-war does not need to be alive in order to give off a powerful sting, even if it has washed up on shore and looks dead, it can still sting you! The Portuguese man-of-war floats around the Atlantic Ocean, as well as the Indian and Pacific. So keep an eye out if you are swimming around these areas!

8.) Giant Clam
The giant clam is the largest living bivalve mollusk on earth. (Bivalve mollusks include clams, oysters, and mussels). Native to the warm waters of Australia's Great Barrier Reef, giant clams are capable of growing an average of 4 feet (1 m) in length and weighing close to 500 pounds (250 kg)! However, some species of clams have been known to grow as long as 6 feet. The large majority of a giant clam’s mass is in its shell, with the soft parts accounting for only approximately 10% of the weight. Giant clams are now endangered because they apparently are also quite delicious and have been hunted for centuries for its healthy protein.
The giant clam has one chance to find its perfect home because once it chooses its spot, it stays there for the rest of its life. They can live up to 100 years or more, as long as they are in the wild. Most of the giant clams you see today have been raised in captivity and are really popular in large aquariums. Giant clams achieve their enormous proportions by consuming the sugars and proteins produced by the billions of algae that live in their tissues. This symbiotic relationship protects the algae and they are responsible for the unique coloration. No two giant clams are alike!

7.) Great White Shark
According to National Geographic, great white sharks are the largest predatory fish in the world. They grow to an average of 15 feet (4.6 m) in length. However, there have been some who have grown to 20 feet (6 m) in length! In fact, the largest Great White Shark ever recorded in the wild was estimated to be 26 feet long, which is more than half the length of a basketball court. Combine this with a bunch of teeth, and this is why people get so scared. They are known to weigh up to 5,000 pounds (2268 kg). The heaviest Great White Shark ever recorded in the wild was estimated to weigh in at a whopping 7,328 pounds. .

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Some sharks reach gigantic sizes, such as the famous megalodon and, like this one, there are others that make up the Top 10 of the largest sharks that inhabit the oceans today.


-MEGALODON SHARK (Honorable mention)










Note: This list is made up of the largest species of sharks that exist today, the megalodon was mentioned with an honorary purpose.

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The Largest Creatures Ever Discovered on Earth

Top 10 of the biggest animals in the world
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For decades, we were taught that the dinosaurs were the largest animals to ever roam the Earth. But thanks to research and archaeology, scientists have discovered the fossils of animals who were just as big. It seems that as time progressed, animals got smaller. The Earth is believed to be over 4.5 billion years old, and dinosaurs only came into the picture about 235 million years ago and remained here until they went extinct 65 million years ago. Between the extinction of the dinosaurs to today, quite a bit of time has passed, leaving Mother Nature to get creative with evolution. Could you imagine walking alongside a giant penguin that was nearly the same height as you? If you’re weary of rodents, then you wouldn’t have liked the giant rodents that once existed. Also, if you think getting eaten by a snake is far-fetched, there once used to be massive snakes that roamed the Earth. If you value your time at the beach, then maybe you shouldn’t learn about megalodon, who could have swallowed you whole. Woops, too late!

In this video, we’ll tell you about the biggest animals to have ever roamed the Earth. Some of the animals that we know and love today have massive ancestors, like the Sea Scorpion If you think that elephants couldn’t get any bigger, then you’ll want to take a peek at the palaeoloxodon namadicus. If you’ve seen the video of that guy picking a fight with a kangaroo, we wonder how he would have fared with a 1,000 pound prehistoric kangaroo. Finally, if you want a dose of something massively big, look no further than the ocean for the blue whale.

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How Whales Became The Largest Animals Ever

Whales are the largest living animals that have ever existed on this Earth. A blue whale can grow to a whopping 110 feet in length, outweighing even the dinosaurs. But curiously their story begins from rather humble beginnings. Here is the story of how whales became the giants of the sea.


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Following is a transcript of the video:

Whales are the largest animals to ever exist on this Earth, outweighing even the dinosaurs. These titans roam the oceans in search of food, but that wasn't always the case. Millions of years ago they used to be land dwellers. Here is how whales ended up becoming the biggest of them all.  Following is a transcript of the video.

Whales are the biggest animals of all time. Heavier than elephants, wooly mammoths, and even dinosaurs!

But they weren’t always the titans of the sea. Let’s rewind the clock around 50 million years. No, you won’t find any whales here. You have to go ashore. Meet Pakicetus. The very first whale.

Life on Earth spent millions of years clawing its way out of the oceans. But whales took all that effort and threw it out the window. From 50 to 40 million years ago they traded in their four legs for flippers. In fact, some whales today still have leftover bones of hind legs!

Once submerged, their weight under gravity no longer mattered so they could theoretically grow to enormous proportions. And they did. Today, a blue whale is 10 THOUSAND times more massive than the Pakicetus was.

But this transformation wasn’t as gradual as you might think. In fact, over the next 37 million years or so whales grew increasingly diverse but their size remained small. And were only 18 feet long. Making them easy prey for predators, like giant sharks.

It wasn’t until around 3 million years ago that an ice age tipped the scales in the whales’ favor. Ocean temperatures and currents shifted sparking concentrated swarms of plankton and plankton-seeking krill. It was an all-you-can-eat buffet for the baleen whales, who grew larger as a result. And the larger they became, the farther they could travel in search of more food to grow even more. You can probably see where this is going.

3 million years later, humpbacks, for example, have one of the longest migrations of any mammal on Earth, traveling over 5,000 miles each year. As a result, modern whales are the largest they’ve ever been in history.

Take the biggest of the bunch the blue whale. It weighs more than a Boeing 757. Has a belly button the size of a plate. And its network of blood vessels, if you laid them out in a line, could stretch from Pluto to the sun and back over two and a half times!

In fact, the largest blue whales are so huge that scientists think they may have hit a physical limit. When they open their wide mouths to feed they engulf enough water to fill a large living room. So it can take as long as 10 seconds to close them again.

Scientists estimate once a whale is 110 feet long it can’t close its mouth fast enough before prey escapes. So it’s possible we’re living amongst the largest animal that will ever exist. Lucky for us, they mostly just eat krill.

This was made in large part thanks to Nick Pyenson and the information in his new book, “Spying on Whales.”


Every fisherman dreams of the one big catch. It is not uncommon to lie in such a case as the size of the caught trophy. Therefore, we have prepared for you only officially registered records of the largest catches. From whale sharks, to the Mekong Giant Catfish that was bigger than a grizzly bear, these are 10 BIGGEST Fish Ever Caught !


Meet the 10 largest marine dinosaurs that inhabited the planet. It is worth mentioning that these are not exactly dinosaurs but marine reptiles, but they are known because they shared the same period as the dinosaurs, they even have the saurian ending in their names.

This genus of the Shastasauridae family and the ichthyosaurs order, it is the largest marine reptile ever found.

The mosasaur or mosasaurus is a genus of the mosasauridae family, a group of extinct aquatic lizards and carnivores that, as we have seen, also involved the Tylosaurus and the hainosaurus.

It was a genus of the Shastasauridae family that belonged to the Ictiosauria order that, like the order of the Plesiosauria, descended from reptiles.

It is a genus of the Pliosauradae family and the Plesiosauria order composed of six species that lived between 155 and 147 million years ago, in the middle and late Jurassic periods in the seas surrounding what is Europe and South America today.

It is a genus of dinosaur that belongs to the Elasmosauridae family and the Plesiosauria order and that lived eighty million years ago, during the Cretaceous period in the Western Interior Seaway.

It is a genus of marine animals that belongs to the mosasauridae family. Its name means lizard of great protuberance.

It was a marine lizard genus that was part of the mosasauridae family. It lived at the end of the Cretaceous period. Its skull measured 4.9 feet and had jaws with more than 60 teeth.

It is a genus of Elasmosauridae, of the Plesiosauria order. It lived 95 million years ago, during the Cretaceous period, in what is now North America.

It is a Elasmosauridae family genus of the Plesiosauria order. It lived between 85 and 71 million years ago, during the Cretaceous period, in the seas that crossed and surrounded what is now the United States.

His name means Alberta swimmer. It was discovered thanks to mining excavations that were being carried out in the Bearpaw formation, in Alberta, Canada.

It measured from 29.5 to 34.4 feet in length and was approximately 6.5 feet in height. In total, it could weigh eleven tons.

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BBC Planet Earth (Blue whale)

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Why Killer Whales Are APEX Predators!

Check out Why Killer Whales Are APEX Predators! This top 10 list of amazing animals that live in the oceans has some of the coolest facts you didn't know about orcas!

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7. Why is the Killer Whale called an Orca?
Both of the names come from the fear that this animal has instilled into our human hearts over the centuries. Their scientific name, Orcinus Orca, comes from the mythical Orcus. You may not have heard much about him but he was the Roman and the underworld, AND the punisher of broken promises. The genus Orcinus means “belonging to Orcus”.

6. Killer Whales Can’t Smell
The killer whale has very well-developed eyesight. The convex or spherical lens of marine mammals differs vastly from those of land mammals. A marine mammal's eyes compensate for the lack of refraction at the cornea interface by having a more powerful spherical lens. Killer whales also have a well-developed acute sense for hearing underwater, and they process sounds at a much higher speed than humans. They can hear each other from more than 10 miles away.

5. Hunting Strategies
Like I’ve said before Orcas are smart! They are highly social and hunt in coordinated packs. Their ingenuity and predatory intelligence is passed down from one generation to the next. Orcas will adapt their strategies according to their prey. They use echolocation to find their prey, sending out sonar clicks that bounce back to them and once they locate the target, it is ON!

4. Do they live up to their name?
Orcas aren’t whales themselves. They belong to the dolphin family (Delphinidae) and it is the largest of all dolphins. Whalers working off the coast of Australia claimed that Killer Whales would help them hunt other whales.

3. Killer whales have a unique dialect
Killer whales, just like all aquatic mammals, depend heavily on underwater sound for orientation, feeding, and communication. There are three different categories of music that killer whales produce: clicks, whistles, and pulsed calls. Clicks are commonly heard during social interactions but are also mainly used for navigating and locating prey and other possible obstacles in the surrounding environment.

2. Great White Shark vs Killer Whale
It’s very hard to imagine the terrifying great white shark as prey. In 2017, beachgoers were horrified to stumble across the carcasses of Great White sharks washed up on the beaches in South Africa. These bodies ranged in size, from as small as nine feet to as big as sixteen feet, but they all had large sets of puncture marks behind their pectoral fins. What was eating the apex predator of the sea??

1. Orcas and Humans
While so far their behavior may seem intimidating and violent, it is important to note that many Native American tribes respected the killer whale and believed they were a special protector of humankind. Killer whales were symbolic animals representative of mightiness and vigor, qualities aspired to by warriors. They were referred to as the “lords of the ocean” and would protect the waters with the help of dolphins.

Origins Explained is the place to be to find all the answers to your questions, from mysterious events and unsolved mysteries to everything there is to know about the world and its amazing animals!

How Large Are Blue Whales Really? Size Comparison

The Blue Whale is the largest animal of our time and the largest animal that ever lived. But how large are they exactly? This animation will show you.


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The Biggest Animal in The World | The Blue Whale | Blue Whales Documentary | Australia

Killer Whale Attack ( Documentary )

The killer whale or orca (Orcinus orca) is a toothed whale belonging to the oceanic dolphin family, of which it is the largest member. Killer whales are found in all oceans, from Arctic and Antarctic regions to tropical seas. Killer whales have a diverse diet, although individual populations often specialize in particular types of prey. Some feed exclusively on fish, while others hunt marine mammals such as seals and dolphins. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as there is no animal which preys on them.

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Meet the top 10 biggest sharks in the world and history. From prehistoric sharks like the Megalodon, to the largest of the present as the whale shark and the great white shark.

It is the largest sea monster of all time. It measured between 52 and 65 feet (16 and 20 meters) in length and 22.9 feet (seven meters) in height. It was three times bigger than a white shark!

It reaches an impressive 39.3 feet (12 meters) in length. The whale shark lives in warm oceans around the world at less than 2200 feet (700 meters) deep.

Surely, you must already know this voluminous shark that swims with its mouth open. It is the second largest fish in the world today.

Have you ever seen this predator’s teeth They exceed 2.7 inches (7 centimeters) and have serrated edges, meaning similar to the edges of an electric saw.

Of all the prehistoric animals, this is considered one of the ugliest and most frightening looking. Its main characteristic was to have a spiral protrusion filled with teeth in the lower jaw.

Its name means glorious Chubut shark. It lived in a period between 28 and 5 million years during the Oligocene, Miocene and Pliocene era.

This extinct species of shark lived between the Paleocene and the Eocene eras in a period that goes from 55 to 45 million years ago.

This shark measured around 32.8 feet (10 meters) and lived during the Cretaceous era, in a period ranging between 112 and 85 million years ago.

It lived from 33 to 22 million years ago. During all that time, it was a dominant predator eating penguins, seals, dolphins and even whales.

Maybe you've heard of it as Ginsu shark, in relation to the knives of that brand that serve to cut meat. It is a genus of shark that lived between 100 and 82 million years ago, during the Cretaceous period.

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Every year, Humpback whales in the North Atlantic make a long migration down to the Caribbean to have their calves in warm, calm water. Many of these whales go to one particular area called the Silver Banks near the Dominican Republic. Jonathan spends a week in the Silver Banks filming whales underwater, and you won't believe how close he gets to the whales, and the exceptional behaviors he observes!

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Whales are the largest animals on Earth. Yet ironically they are one of the most difficult animals to see and film. Normally Humpbacks are found in the cool and rich waters of the temperate seas. But every year for a short period of time, Humpback whales from the North Atlantic migrate to the warm and clear waters of the Caribbean to mate and give birth.

And one of the largest gathering places for Humpbacks in the world is the Silver Banks, in the Dominican Republic.

The Dominican Republic occupies half the island of Hispaniola in the Caribbean sea. Just north of the island is a shallow area called the Silver Banks—that’s where the whales are found.

During the summer, Humpbacks live in the cool, murky waters of the North Atlantic where there are huge schools of small fish to eat. They migrate two thousand miles down to the Silver Banks in the winter so they can have their calves in warm, calm, protected tropical water. This is the best place to film them underwater because the ocean is so clear.

Soon we depart from the marina and begin a 90 mile trip north over the open Caribbean Sea, under a beautiful blue sky. Our journey takes about 6 hours.

When we reach the Silver Banks, I can see why this area is popular with the whales. Isolated coral reefs dot the entire area like a minefield.

They provide protection from waves, but the water between the reefs is still 80-100 feet deep, providing the depth that large animals like whales need.

Once again I silently slip into the water. There’s no way I’m going to sneak up on a whale—they know we’re here. I’m just trying not to frighten them with a big splash.

I look around to find the whale. You might be surprised how well they blend in to the bottom from a distance.

And there she is, about 40 feet below. Her calf is hiding below her.

Soon the calf sees me in the water and comes out for a look. This looks promising! The calf appears small compared to his mother, but he is larger than a minivan. He only looks small because his mom is larger than a school bus!

The calf takes a quick look at me and decides to go back down to his mom.

But pretty soon mom needs a breath and starts heading to the surface. The calf follows. As he passes me, he does a barrel roll, just for fun.

Eventually his curiosity gets the best of him and he finally swims over for a look at me! He comes so close that his fluke is only a foot from my lens!

And then he comes back for another pass! I can feel the water move as his fluke passes by!

The next morning, we load the Zodiac again and hit the water, looking for whale action.

We see a mother and calf resting nearby, so Mario and I go in to see if the calf will play with us!

When we approach, the mother is rolling around, while her calf is staying on the other side.

Soon the calf gets curious and comes over to check me out.

Then mom comes over too. She gives me a look, takes a breath and dives down after her calf.

Later in the day I come across a couple engaged in a Valentine dance. The female is hovering vertically in the water with her flippers out to the sides, to beckon the male over.

She has juvenile jacks, a kind of fish, nibbling on the loose skin on the front of her rostrum. I wonder if she finds them annoying, like flies buzzing around a person’s head, or if she enjoys the cleaning she is getting.

She doesn’t mind my presence at all—I float right over her head and she just hangs right below me, with the complete attention of the male Humpback.

It’s a remarkable spectacle to float above this whale and watch her relax, with tiny fish nibbling on her nose!

Later, having witnessed an incredible spectacle, Mario and I return to the boat.

World's Biggest Whale ever

World's Biggest Whale ever spotted in the Arabian sea

Tagging the Largest Shark on Earth | Our Blue Planet | Earth Unplugged

The size of a school bus but in many ways a mystery, whale sharks continue to fascinate. Join a team of international scientists at a renowned marine sanctuary in Cabo Pulmo, Mexico and discover how we’re trying to better understand these remarkable creatures.

#OurBluePlanet is a digital project between BBC Earth and Alucia Productions. Come join the conversation over on Twitter @OurBluePlanet

This film was produced by Alucia Productions
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Expedition Team:
Dr. Mauricio Hoyos: Managing Director, Pelagios Kakunja
Dr. James T. Ketchum: University of California, Davis, Graduate Student Researcher. Director of Conservation, Pelagios Kakunja
Andrea Asunsolo: Reseacher, Pelagios Kakunja
Dr. Simon Thorrold: Woods Hole Oceanographic Institution, Senior Scientist - Biology
Manuel Castro: Local fisherman

Production Crew:
Director: David Hamlin
Director of Photography: Earl “Kip” Evans
Field Audio/2nd Camera: Rick Smith
Production Manager: Audrey Costadina
Editor: Ryan Quinn
Post Supervisor: Brian Golding
Executive Producer: Jennifer Hile
Creative Director: Mark Dalio

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