10 Scariest Prehistoric Animals Of All Time

10 Scariest Prehistoric Animals Of All Time

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Dangerous Prehistoric Animals
The world is 4.5 billion years old, and throughout these years, our world has seen some truly remarkable
things. We've seen several extinction events, several ice ages and have even managed to suffer a solar
flare.
But these wonders aren't the only remarkable things our world has seen. It has also seen the rise and fall
of dangerous beasts of the air, earth, and seas. Beasts that can chomp through bone, and beasts that
can bite through an entire ship.
On today's video, we'll be taking a look at the most dangerous prehistoric animal that has ever walked
the earth. Watch out for number three on this list— some say he's still alive and that he walks the
mountains as Big Foot.
10 Phorusrhacidae
The Phorusrhacidae sounds like a regular scientific name you give to a regular bird. And to a large
extent, it is. But the name that the Phorusrhacidae truly goes by is the "Terror Bird".
And trust us, this beast of the air isn't called the terror bird for anything. People who named it had
pretty good reasons for doing so. These birds are an extinct class of large carnivorous flightless birds
that were the largest species of apex predators in South America during the Cenozoic era.
They could be as short as three feet, and they could grow as tall as 10 feet. Most scientists believe that
their closest relatives today are the 80-centimetre-tall (31 in) seriemas. Asides it's terrifying height, the
terror bird had an extraordinarily flexible and strong neck that allowed it to carry its' extremely heavy
head, and attack with ridiculous pace and power. It had an eighteen-inch long beak, and it was
extremely fast.
How fast? Well, it could reach speeds of 48 kilometres per hour. For comparison, Usain Bolt managed to
clock 44 kilometres per hour only once in his life— and he did this for only a few seconds.
So, the Terror bird is a chicken that's 10 feet tall, in possession of a short sword as a beak, and can run
faster than Usain Bolt.
Are you not terrified? Thankfully, it's a prehistoric animal and is extinct today.
#9 Argavantis
Argavantis sounds like the name of an elf out of a fairy tale. This Elf, of course, has nice flowing white
hair, kind blue eyes, and soft words that'll make you swoon.
But we all know that what something sounds like and what something is are two very different things.
The Argavantis may sound like the name of a good elf, but it's a Vulture with a twenty feet wingspan.
And yeah, this vulture was surely one of the largest birds to ever take flight. While some early
calculations say the bird has a wingspan of about 24 feet, recent calculations and analysis have placed

the length of the bird's wings at 21 feet. It may not be quite as large as 24 feet, but it is still
extraordinarily large.
But we've only spoken about the magnificent wingspan of this bird. What of its standing height?
As per recent papers, the bird was able to reach a standing height of about 5ft 11 inches. That's taller
than most human beings.
So the Argavantis is a near 6 feet tall bird with a wingspan of 20 feet. And what's more? This bird was
carnivorous and often swept down to devour carrion.
8 Dunkleosteus
The Dunkleosteus is what you get when the Rock from Fantastic Four turns into a fish. This fish, of
course, is not your regular fish.
It's a beast that can grow up to twenty-eight feet long. Asides it's monstrous size, the Dunkleosteus had
a monstrous bite as well. How monstrous? Well, it could deliver bites with over a thousand square inch
of force. It also weighed about four short tons, making it one of the largest fishes to ever exist.
But that's not all. The peculiar thing about this fish is its two-part bony band armoured exterior. This
made it a relatively slow but powerful swimmer. But we don't think this would have been a problem
from the big old and armoured dunk. He would only need to wait and ambush prey— he was certain to
destroy them with one bite. Amazingly, the Dunk could open and close its jaws in less than 80
milliseconds. Yes, that's less than a second.
#7 A Rat The Size Of A Bull
The Josephoartigasia monetis, an extinct species of South American caviomorph rodent, is the largest
rodent known, and lived from about 4 to 2 million years ago during the Pliocene to the early Pleistocene
era.
The Rat may have weighed up to a ton and was basically the size of a bull. Imagine how scary regular
rats are today.