The Ice Age was no doubt one of earth’s most questionable phases, being a very brutal time that led to brutal animals, and sometimes these animals were so ferocious that they made other monsters seem a bit dull, one such animal that did this was the Smilodon.

Jaws, the most iconic shark film of all time, is likely the source of thalassophobia in millions of people worldwide. And it's not hard to see why, cause… well sharks just look really scary, far scarier than whales, but there was one whale, now far gone, that actually would’ve made for one terrifying jaws, the Livyatan.

Our ancestors had it ROUGH. On the bright side, there was a good chance you would've been the world's best at something...

"Not so tough now are you tyrant king" circa 66 Mya

If you hate bugs, or any other type of creepy crawlies, you probably shouldn't listen to this

Yup, your reading the title right, Africa wasn't always the land of giant cats, rather big fuzzy wuzzy bears.

Flipper wasn't so nice and wholesome back in the day. For some reason it seems like every animal we all adore was at one point quite monstrous as demonstrated by the Ankylorhiza, a prehistoric nightmarish dolphin.

Everything was messed up and more dangerous during the Mesozoic. You had theropods, titanic sauropods, fortified ankylosaurs, giant crocs, and frogs. Yes, that's right even the frogs were messed up as demonstrated by Beelzebufo the dinosaur eating giant, that may have been the largest frog to ever live.

150,000,000 years ago the Earth was a completely different place. Dinosaurs roamed the lands, pterosaurs ruled the skies, and all manners of nightmares lurked in the waters. But this barely does justice in describing the wonder that was Earth during this time period, which was also known as the golden age of dinosaurs, i.e the late Jurassic!

When people think of Ancient Egypt, we often think of mummies, pyramids and hieroglyphs, in other words, the human-y things. But did you know that despite only being 2,000 years ago, ancient Egyptians also lived alongside many different animals that are no longer around? We're talking giant lions, massive cows, 2-meter birds, and more...

During the Late Cretaceous, a giant Tyrannosaur lumbers about looking for its next victim. It has one of the most powerful bites ever seen and outsizes nearly every predator be it on land or in the water, sounds a lot like the T. rex right? Wrong! This is Tarbosaurus!

You’ve probably heard that the country down under, Aka Australia, is the land of nope. Well, its kind of true, as Australia does have way more lethal animals that the average country does, but in true Australian fashion, it turns out that in the past it was 100x worse.

Quick, someone tell Caesar

Cats vs Dogs - a debate as old as time itself. Unfortunately for dog lovers, felines always seem to have the upper hand when it comes to size. But once upon a time there was a dog that could give even the big cats a run for their money. Meet the Epicyon, the lion sized, bone crushing canine of North America.

Birds and Pterosaurs...they both flew and they both had beaks, but only one made it out of the late cretaceous. What gives?

It may come as a surprise, but the first human species to build proper houses was not us, Homo Sapiens, but instead another species of human that lived almost 2 million years ago. And the crazy thing is, that's only a small list of "firsts" that the they accomplished...

The Tyrannosaurus Rex is known as the king of the dinosaurs and ruler of Cretaceous North America. However, there was another king that lived along the Rex, and it was no carnivore, this was the Ankylosaurus

Velociraptors = Human-sized scaly reptiles that lived with T. rex right? WRONG! They were tiny! And lived in…wait for it…MONGOLIA! Who would’ve thought?

Through old studies and numerous paleo media depictions, the Andrewsarchus has gained a reputation of being the undisputed largest mammalian land predator and carnivore ever. However, this is almost 100% not the case, as another lesser known mammal has a much more solid claim to the throne, Arctotherium sometimes known as the giant short faced bear

This is the story of the last non-human ancestors of humanity

To many people, the Dilophosaurus is a small, venom spitting dinosaur that played a minor role in Jurassic Park. However, in reality the Dilophosaurus was actually much more impressive, as it wasn't just one of the first dinosaurs to become an apex predator, but it was also the largest dinosaur and animal on land in North America during the Early Jurassic.

If you to travelled back to North America, anywhere from 83 to 77 million years ago, you would find the lands covered with dinosaurs, many of which were giant. However, they wouldn't be the largest things you could 'run' into, as during those times that largest creature in North America was not a dinosaur, it was a.....

There was a point in time, when the world was pretty much like Mad Max, but instead of humans and crazy looking cars, there was crazy looking bobble-headed predators, pig like reptiles everywhere you looked and mega hurricanes, this was Earth 250,000,000 years ago.

If you thought Jaws was scary, wait until you see what prehistoric sea monsters lurked in the depths of this ocean...

Dinosaurs in general are pretty weird, but just how weird did they get? Well it turns out, pretty dang weird...

Can it get any more American? Supersized, comeback story, the name - Alamosaurus has it all!

Titanoboa ain't top dog anymore

Everyday it's estimated that over 100 species die, that's quite a lot, but let's face it most of these species we never hear of, so we don’t really think often about this stat. Yet, once in a while a species well-known to people disappears, causing us to stop for a minute and ponder…

I wonder who was the favorite child...

10,000 years ago of all kinds of titans roamed America, and I mean ALL KINDS, we're talking giant beavers, mammoths, wolves and more... Thankfully for us we no longer have to worry about a not-so friendly Smilodon jumping us while out running, but the same could not be said for the Native Americans, who not only lived alongside them but also managed to thrive.

People often ask about how bad the asteroid that struck the dinosaurs was, or what would happen if it hit earth today, but no one's really asked just how long the dinosaurs survived after d-day...

The ancient Greeks & Romans did a lot during their times, spreading far and wide, which also led them to seeing a lot too. These sights included landscapes, other civilizations, and even exotic animals too, some of which are sadly no longer around today….

You know how I've reiterated that you shouldn't get into the water, no matter how bad things get on land, well... there is ONE exception to this rule.

0:00Nature’s Unspoken Rule And The Period That Broke It 00:45Geography & Oceanography 02:15What Lived In The Oceans & Seas 03:56What Caused Life In The Water To Be So Unscary? 04:35The Opposite Story On Land & Earth’s Old Rulers 05:11Earth’s Original Sabre-Tooths (Gorgonopsids) 06:30The Largest Predator & Gorgon Around 08:45Permian Russia Was A Problem 09:18The Giant Gorgonopsids That Ruled Africa 10:47More More More Gorgons 11:27The Gorgonopsid’s Nemesis (Therocephalians) 12:18First Animals To Evolve Venom? 12:50Jaguar Sized Predator With A Lion Sized Head 13:35Largest Non-Gorgonopsid Land Carnivore 14:25Other Late Permian Carnivores 15:20Amphibians 16:30Herbivores & The Largest Animal On Earth 18:28Prehistoric Skies WITHOUT Pterosaurs 19:21Mother Nature Wanna Kill You Too (The Great Dying)

Arrrr, here be krakens matey! Well, not really, but kind of... especially when you look at prehistoric waters.

The Late Jurassic Morrison Formation was one of the most brutal places to ever exist. You had giant sauropods and cannibalistic theropods roaming about, and still somehow, things got even crazier when you looked at some of the 'smaller' dinosaurs, with one herbivore in particular actually being more grisly then some of the predators around...

Harder, better, faster, stronger....Daft Punk really just made a song about neanderthals.

Hey you! Yeah you, wanna take a sweet vacation to an Island? I got the perfect place for you...

Before the killer whale, or the barracuda, or even the great white, there was the king of lizards, or rather a whale, that looked more like a mosasaur or snake than any whale you or me is familiar with.

Of the 31 extinctions (give or take) that life has faced, you may have only been taught in school about the kt event, aka the extinction that took out the dinosaurs. And you might've been led to believe that it was the worst day for life ever... you've been lied too.

In Lion King, Scar used an army of Hyenas to try and uh..."remove"...Simba, but as we know, this didn't turn out so great for him, well I am here to tell you that things would have panned out quite different, if he had just hired this prehistoric Hyena instead.

Santa Claus had some competition during the Late Cretaceous...

We all go through ups and downs in life, but for this particular human species, it was only downs.

Some 150,000,000 Years Ago, before the Bull Shark, the Great White, or the Megalodon, there was... the Pliosaurus

Hobbits have cozy lives right? True, until you put them in the real world and on an island with giant reptiles, then you got yourself some brutally awful experiences.

Water, especially deep water, a big no no for many. And this is for good reason, but once upon a time, the oceans and seas of Earth were actually pretty chill, so how did it go so wrong? When was Thalassophobia born?

"Am I cooked?" - Cro-Magnon (c. 26,000 BCE)

The hardest game ever is the one we are forced to play & that's life, and within it their seems to be a number that only 1% make it past, which begs the question...why?

When you think of the biggest and baddest group of animals to ever live, you likely imagine the dinosaurs. And why wouldn’t you? They were the largest land carnivores and herbivores to ever live. So, it may then surprise you that dinosaurs were actually at one point in their existence ruled by a much less famous group of animals…

Ice age Europe wasn't exactly the most welcoming of places...

When you go swimming in the ocean or seas, the last thing you want to swim into is a shark... but what happens when everything is a shark?