TERRIFYING Prehistoric Creatures That Lived With HUMANS!

From giant sloths with enormous claws to the
biggest cat in history, here are 9 prehistoric creatures that lived alongside humans. 9. Dire Wolf The dire wolf is known more formally as Canis
dirus, which means “fearsome dog.” One of both North and South America’s most
famous prehistoric carnivores, it inhabited these continents starting around 125,000 years
ago. Remains of the dire wolf have been found in
a variety of habitats, including grasslands, savannas, and mountainous, forested areas. At five feet long (1.5 m) and up to 200 pounds
(90 kg), the dire wolf was like a larger and sturdier version of the modern-day gray wolf,
which is currently the biggest living wolf species. Its bite force was 29 percent stronger than
that of the gray wolf – stronger than any known Canis species, actually – and its diet
consisted mostly of horses. The dire wolf, which hunted in packs, also
feasted on mastodons, ground sloths, bison, and camels, which it devoured using teeth
much like that of the gray wolf, but better capable of shredding its meal. Like so many other Pleistocene era carnivores,
the dire wolf went extinct around 10,000 years ago. Climate change, competition with other species,
and its reliance on a dwindling population of megaherbivores as a food source have been
cited as possible reasons for its extinction. 8. Megalania Around 50,000 years ago, humans first migrated
to Australia, and for a brief period, these aboriginal settlers shared the continent with
the megalania, a now-extinct monitor lizard and the largest known terrestrial lizard to
have ever existed. The megalania came from the same family as
the komodo dragon but was up to four times bigger, likely measuring at least 18 feet
long (5.5 m) and weighing around 1,300 pounds (590 kg), according to the most recent estimates. Like the komodo dragon, the megalania possessed
poisonous oral glands. If its prey didn’t succumb to blood loss
simply from being bitten by its serrated, blade-like teeth, the victim slowly bled to
death from the anticoagulant effects of the toxins secreted by those glands. The megalania probably ate other lizards,
marsupials and other small mammals. As an early human this beast would have been
terrifying with its magical saliva and may have inspired several legends. Some believe that the creature still exists,
as strange attacks are often reported in rural Australia. 7. The Giant Ground Sloth You can’t help but love sloths. I mean, they are cute, cuddly, and move very
slowly. But back in the time of early humans sloths
looked extremely different. Giant Ground Sloths were huge herbivores that
lived in the Americas during the ice age alongside rivers and lakes. The largest ground sloth, Megalonyx jeffersonii,
was the size of an ox when fully grown, and could grow up to ten feet long and get up
to 2,200 pounds in weight. They didn’t live in trees but in giant burrows
that they would carve out with their claws. Despite officially having gone extinct thousands
of years ago, there are still sightings of a creature known as the Mapinguari across
South America. Legend says that this creature has giant claws,
backward facing feet, and an extra mouth on its belly- but some think it could actually
be a remaining species of ground sloth that still lives in the thick forest. 6. Columbian Mammoth Meet the Columbian mammoth, a cousin of the
better-known woolly mammoth. Around one million years ago, Columbian mammoths
appeared in North America. They evolved from an earlier, Pleistocene-era
species of mammoth, although exactly what this ancestor was remains unclear. Fossils have even been found in Canada, Nicaragua,
and Honduras. The Columbian mammoth was bigger than its
relative, the woolly mammoth, standing up to 14 feet tall (4.2 m) and measuring between
13 and 15 feet long (4 m – 4.6 m). This massive beast typically weighed somewhere
between 18,000 and 22,000 pounds (8,164 kg – 9,979 kg). It’s tusks alone were up to 16 feet long
(4.9 m), perfect for fighting off predators. Unlike the woolly mammoth, which came from
a frigid region of Eurasia and was named for its thick fur, the Columbian mammoth probably
didn’t have much hair, since it inhabited a region with a warmer climate. As terrifyingly huge as the Columbian mammoth
was, it was an herbivore that ate grasses, brush, trees and other plants. So early humans were more a threat to it,
than it was to them. To keep up with its body’s demand for energy,
the Columbian mammoth had to consume hundreds of pounds of food daily, or around 150,000
calories! There are some similarities between the Columbian
mammoth and modern elephants, like living in herds and having ridged teeth designed
for chewing plants and that grow in sets as the animal ages. Scientists believe that the Columbian mammoth
lived to be between 70 and 80 years old. It roamed the planet for hundreds of thousands
of years until it went extinct somewhere between 13,000 and 10,000 years ago, most likely due
to climate change and being over-hunted by early humans. 5. Gigantopithecus The Gigantopithecus was the largest primate
to ever exist, standing up to ten feet tall (3 m) and weighing as much as 1,100 pounds
(499 kg). For somewhere between six and nine million
years, it lived in the tropical forests of what is now southern China. It looked much like a modern-day Sasquatch
but went extinct about 100,000 years ago, at the beginning of the last ice ages. A study released in 2016 suggested that climate
change, along with the creature’s size, were to blame for the demise of the Gigantopithecus. The giant ape, which feasted primarily on
fruits, was unable to sustain itself on grass, roots, and leaves that became the dominant
food sources of the changing environment. Put simply, Gigantopithecus was too big to
survive on these foods. If the species had been smaller, it’s quite
possible it might have survived. 4. Short-Faced Bear After bears first came into existence some
40 million years ago, several subspecies evolved, including the short-faced bear, which inhabited
North America and was most abundant in modern-day northwestern United States, especially California. The short-faced bear first appeared around
800,000 years ago, during the middle Pleistocene era. There were two species of the short-faced
bear, and one of them, was one of the largest known terrestrial mammalian carnivores to
have ever existed. Arctodus simus is estimated to have weighed
up to 2,110 pounds (957 kg) and to stand between 11 and 12 feet (3.4 m – 3.7 m) tall while
on its hind legs, with a vertical arm reach of around 14 feet (4.3 m). On all fours, it stood tall enough to look
an adult man in the eyes. In addition to being powerful, the short-faced
bear was fast. It was capable of running between 30 and 40
miles per hour (48 km- 64 km). An analysis of bones found in Alaska uncovered
high levels of nitrogen-15, which indicates that the short-faced bear was highly carnivorous. The species went extinct 11,000 years ago
as it competed with animals entering North America, its supply of prey began to wane,
and humans greatly improved their hunting techniques. 3. Quinkana The quinkana was a huge crocodile that became
one of Australia’s top terrestrial predators during the Pleistocene period. It comes from an extinct genus that roamed
the continent from 24 million years ago until around 40,000 years ago. On average, the quinkana grew up to 23 feet
long – that’s three feet longer than 20-foot Lolong, the longest crocodile ever recorded. Unlike many other crocodiles, the quinkana
was a land-dweller. Because of this, it grew long, powerful legs,
which enabled it to tire out its prey by chasing it over long distances. Also unlike other crocodiles, who characteristically
use their teeth to drag their victims in the water to drown them, the quinkana had much
sharper teeth and used them for cutting. The quinkana went extinct around 40,000 years
ago – around 10,000 years after Australia’s first human settlers arrived – and the entire
genus of crocodiles that the quinkana came from are all now extinct. 2. American Lion The American lion, or Panthera atrox, wasn’t
actually a lion at all. It was, however, one of the great North American
mammalian predators of the Pleistocene Epoch. This enormous cat roamed the U.S. and Canada
from 1.8 million to roughly 11,000 years ago, when the species died out at the end of the
last ice age. During its time on Earth, the American lion
was only exceeded in size by the giant short-faced bear, that I just told you about. In fact, it was the biggest known cat in history
and was 25% bigger than the modern African lion, weighing in at 772 pounds (350 kg) on
average. This strong predator was capable of taking
down other huge animals, such as bison, and it was probably wise for our human ancestors
to avoid them, even during a group hunt. While the American lion had a lot of similarities
to modern-day lions and tigers, it most closely resembled jaguars. The best fossils of the American lion have
been found in the La Brea tar pits of the Miracle Mile district of Los Angeles, along
with fossils of other extinct giant species, including saber-toothed cats, mammoths, ground
sloths, and camels, and the dire wolf – just to name a few. 1. Cave Hyena Surely you’ve heard of the laughing hyena. This was its prehistoric cousin. The cave hyena, also known as the spotted
coyote, occupied territory from the Iberian Peninsula to eastern Siberia and was roughly
double the size of its relative, the laughing hyena, standing up to three feet tall, measuring
up to five feet long, and with a maximum weight of 285 pounds. When working together, this incredibly strong
predator was capable of overpowering large animals, including a nine-ton mastodon, the
steppe bison, and even the woolly rhinoceros. The remains of hundreds of large prehistoric
mammals that have been discovered along rivers and in caves, sinkholes, and mud pits likely
represent the victims of the cave hyena. A pack of these hungry hyenas, which lived
and hunted in packs of up to 30, would have undoubtedly been lethal to a lone human or
a small group of humans. Around 20,000 years ago, the cave hyena population
began to dwindle. It went extinct sometime between 11,000 and
13,000 years ago. Competition with humans over cave space during
the last ice age is likely a huge factor in the extinction of the species. Thanks for watching! What did you think of these prehistoric creatures? Do you wish they were still around? Let me know in the comments below!! Be sure to subscribe and I’ll see you soon!!! Byeee

65 thoughts on “TERRIFYING Prehistoric Creatures That Lived With HUMANS!

  1. The “laughing” hyena??? There are spotted hyenas and striped hyenas but pretty sure no hyena type is actually called a laughing hyena

  2. The Spartans tested Darwin's process of elimination. What those who prais Sparta don't talk about ab is that that leas a genetic bottle neck.
    Also eunenics didn't produce results nor mouse or fly studies unless Specielly trained. Yes yes and pratice can be passed down. . Gene expression genomic imprinting RNA$ impoluses in cell citoplasma or actin . And memberbrane and more active in sperm explaining one or primary sided selection. There's much Evidence for lumarkism.
    And the Hammerhead shark was an example of a hopeful Monster

  3. 20 feet is the longest croc ever recorded? I swear I've seen bigger online. And ice seen hyenas up close. They are over three feet tall. They're like giant dogs with massive heads. They look small on there because shown next to other huge animals.

  4. Started with 9 said 9. But the description says 10.. really was expecting a bonus fact… Didn't know about all of these. Okay only one or two were newish.

  5. 11000 years ago or so is when the comet fragments hit the ice shelves melted them n created the flood of the Bible, killing most of these animals actually. If the flood didn't the intense cold brought on by the flood water hitting the golf stream and throwing off all warming patterns for a 1000 years did. Look it up science is there for everything I just said and more

  6. Man I'm surprised early tribes that settled in North America didn't have a heart attack the moment they saw a 200 pound wolf barreling towards it

  7. That magic time period between 10,000 and 13,000 years ago has a connection to so much it's mindblowing!! After everything I've seen so far I'm calling a cataclysmic worldwide event that wiped out most of everything on earth with massive waves and triggered volcanic activity. Look at Egypt for just one example.

  8. That's too bad that these beautiful creatures had to go extinct. I can just imagine seeing dire wolves and wholly mammoths roaming this land right now. Wonder if we will ever find a way to clone them?

  9. We still live with terrifying prehistoric creatures! RB-Ginsbergcus, Maxine Watersaurus, Nancy Pteralosi….future term limits will bring about their extinction.

  10. It is a fact,that we did not hunt any species to exstinsion!!!! So some of this material does not co-operate with proven sceientific facts!

  11. Actually humans eradicated all these creatures… it’s truly tragic. Especially because now we’d be able to coexist with them. Megalania would have been the first victim due to humanities hatred of reptiles. Yes they were dangerous but they had emotions. Probably the smartest lizard. They definitely did not deserve to burn to death at human hands. And if I was alive still (no way thanks to deforestation) it’s probably better that it’s dead because humans would probably do something even worse to them…

  12. This channel is a joke. They're randomly guessing what weight every animal was and they're certainly randomly guessing when it lived. This channel probably gets all their information off Wikipedia and makes up the rest. Would be nice to see some science, but I guess people just don't want to hear about science on youtube now a days.

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