How big were the giant creatures in ancient times?
With the advancement of science and technology, we overexploit and abuse resources
As a result, the oxygen content of the earth has been in a gradual downward trend
Before the appearance of human traces on the earth, the earth was too high because of the oxygen content
Provides enough oxygen to the organism
As a result, the earth of that period was the domain of megafauna
How big was the creature at that time?
Today, Xiaobian will take you to understand the ten giant creatures that have appeared on the earth
Tenth place, the largest insect
Giant-veined dragonfly, also known as the big-tailed dragonfly or giant-tailed dragonfly
It is an insect that lived in the Carboniferous Period more than 300 million years ago
In appearance, it is very close to our modern dragonflies
It is also very close to modern dragonflies in terms of body structure
Its wings spread out to nearly 75 centimeters
It was about the size of today's eagles
It flies at speeds of more than 20 km/h
It is the largest known insect that has ever appeared on Earth
Before the advent of dinosaurs
The sky of the earth is their world
But it was extinct in the Permian 250 million years ago
If only this insect had lived until now
I may see that the soul is half frightened,
Ninth, the largest bird
Between 25 million and 28 million years ago
After the extinction of the dinosaurs, it was long before the advent of humans
There was once a giant bird
It is called the Mulberry Pseudolodon
A bird fossil recovered and extrapolated bird found in the United States in 1983
The Mulberry Pseudodont is capable of reaching 1.8 meters in length
The largest bird now has a wingspan of only three meters
But its wings spread out
However, it can reach 7.3 meters
The wingspan is almost as long as a fighter jet
This bird has long narrow wings and its hollow bones
Make it even bigger
It is also possible to glide extremely efficiently
Soar for miles over the open sea
You probably don't even have to flap your wings
This bird feeds on fish in the ocean
Fossil rhinoceros
Eighth, the largest land mammal
Around the middle of the Tertiary Period
There is such a creature that lives in Eurasia
They are called The Mulberry Pseudoododontis
The head of the giant rhino is different from that of modern rhinos
It doesn't have long horns
Instead, it looks like a combination of today's giraffes and elephants
Its head, neck and limbs are very long
Standing up is about 7.6 meters
Humans are not as long as its legs
The weight is about 22 tons
The body length is 8 meters
It is the largest known terrestrial mammal
Its tooth structure is very simple and simple
It is estimated to feed on high-rise leaves
7th, the largest flying creature
About 210 million years ago to 65 million years ago
The world's first flying vertebrate appeared
It is called Pterodactyl, and the largest of these pterosaurs is called "Pterodactyl"
At that time, it was the overlord of the air
Although it lived in the same period as the dinosaurs
But pterosaurs were not dinosaurs
The literal translation of its Greek name is "winged lizard"
In other words, it is actually a large winged lizard
Other dinosaurs are closer to today's birds
It is the largest group of pterosaurs
Aeolian pterosaurs can reach a height of 5 meters when standing
It was about the same height as today's giraffes
The wingspan is more than 11 meters long, and the teeth are 10 centimeters long
It is the largest flying animal known to man
What people can't believe is the size of the Aeolian Pterodactyl
How does it fly?
Scientists have studied fossilized bones of it
It was found that the bones of this creature were hollow and the bone arms were very thin
It's all air inside
So although it is large, its weight is very light
But there are many braces in the hollow bones
Strengthens its strength so that it can be used both for flight
It can also be used for walking
This is something that birds don't have
Sixth place The largest snake-like animal
About 60-58 million years ago there was one that lived
Creatures with a width of 80 cm, a body length of up to 14 meters, and a weight of more than 1 ton
It's the Titan Python
Even the largest snake-like forest hopper that exists today is completely incomparable
But because of its sheer size and its skeleton, it cannot survive on land
Once on land, its weight crushes its body
So scientists think the snake may have lived in water all its life
At the same time, scientists have also calculated the squeezing force of the Titan Python
It's the equivalent of parking an eight-ton truck on your chest
This squeezing force makes it possible to feed on 4-meter-long, half-ton blunt-nosed crocodiles and 3-meter-long lungfish
Dominated for ten million years
Fifth place The largest marine predatory reptile
This creature is like a combination of a turtle and a crocodile
It lived between about 200 million and 145 million years ago in the Jurassic
According to fossils unearthed on the south coast of the United Kingdom in 2003
This indicates that the monster is 14 meters long and weighs about 12 tons
The most bite-strong animal in the world today is the bay crocodile
The bite force is about 1.8 tons, and it is 10 times that of the bay crocodile
It can be called the Tyrannosaurus Rex in the sea, it is the upper dragon
The dragon had penguin-like fins
Don't look at the penguins now can be cute and love
But once in the water, penguins can travel quickly at speeds of 25-30 kilometers per hour
Such fins allow penguins to move freely in the water like birds
And there are four such finned dragons
So The Dragon is not only the largest predator in the sea, but also the fastest predator in the sea
Fourth place Largest land predator
About 112 million years ago to 97 million years ago
It is home to the largest known carnivorous dinosaur
Each of its claws is about the size of a human arm
There are also spines higher than a person in the back
It is a very peculiar dinosaur
Named Spinosaurus
Its height is about 5 meters, and its average body length is 15 meters
Although spinosaurus has a large size, it is slightly less lethal
The vast majority of spinosaurus fossils were found near river beaches
The area where it lives lacks herbivorous dinosaurs
Spinosaurus teeth are more like catching slippery prey
At the same time, spinosaurus claws were not hook-shaped like those of other predatory dinosaurs
The claws are flattened, like crocodiles
The skull of Spinosaurus had a crocodile-like structure today
There are many small holes that connect the brain
This allows the crocodile to have this very quick reaction in the water
All this shows that this is an animal that can swim and hunt in the water
But he can only be regarded as a fisherman
The combat power is still not comparable to that of the T-Rex
Third place The biggest top predator
It is a top predator that lived about 28 million years ago
It can even weigh up to 100 tons, and the average body length can reach 18 meters
Its teeth are generally about 25-32 cm long, as large as the palm of a human hand
It is the top predator in the ocean, the megalodon
Like modern sharks, sharks are cartilaginous animals
Most megalodon fossils that can be found are teeth
And the megalodon shark that is restored through its teeth
Even a person standing in its mouth looks small
This gives us an idea of how amazing the size of an adult megalodon shark is
At the same time, scientists are modeled on great white sharks
The data for the megalodon shark was restored
Its average bite force can reach 20 tons
Megalodons as top predators
It is almost 1.5 times the length of the Titan Python
But it weighs more than 2 times the weight of Shanglong
Although megalodon sharks are very large
But there are still creatures bigger than it
It has even survived until now
Second place: The world's largest mammal
It is not only the largest mammal, but also the heaviest creature
This animal lives almost all the time in the deep sea
Powered by a giant tail
It's the blue whale
Blue whales weigh 200 tons, the equivalent of thirty blue whales
It is 30 meters long and is comparable to a Boeing 737 airliner
Scientists can only truly understand its structure if they encounter a whale carcass that has been washed ashore
Blue whales can have a blood vessel length of up to a million miles
Pick up and go back and forth to the moon twice
Whales also have a special feature
That's its mouth
It has a huge mouth
But it is not used to hunt large prey
Blue whales feed mainly on krill and small fish
When eating, it will open its large mouth and eat an entire group in one gulp
Krill are very small, generally between 6 and 95 mm in length
Such a small krill, how much does the blue whale have to eat in one bite to be full
Blue whales are said to swallow 220 tons of seawater with one mouth
Scientists want to show what the concept of 220 tons of water is in order to make it more light
A specially modified fire engine was found
Passenger seats were replaced with huge water tanks
This specially modified fire engine can be said to be the fire engine with the largest amount of water in the world
The spray of water from it is spectacular
However, the fire engine only filled a quarter of the amount of water the blue whale swallowed at a time
Although the blue whale is already so huge
But what we're going to introduce next is an animal that's longer than a blue whale
First place The largest behemoth
A dinosaur fossil was found in the desert of The Patagonia region of Argentina in 2014
A total of 223 fossils were allegedly found at the excavation site at that time
Among them is a huge leg bone of about 1.8 meters
It is also one of the largest known dinosaur fossils
Scientists estimate that it may weigh less than a blue whale at about 90 tons
But his length can reach 40 meters
The stomach alone is about the size of an elephant
It's the Titan Dragon
They have such huge bodies
Its head was about the same size as a horse's head
It's incredible
However, the secret of such a huge amount of its length is all in its "small" head
Because Titan Dragons never have to chew when they eat
All are pulled up and swallowed directly
Its head is like a plant vacuum cleaner
It is able to swallow plants weighing more than two tons in one day
Everyday life is eating grass
After eating the left one, the head twisted and began to eat the right one
It can be said that everywhere you go, there is no grass
The ranking of the top ten giant beasts is introduced here
But I believe
Among the sedimentary rock formations there must be fossils of behemoths that we have not yet discovered waiting for us to explore