An ancient creature is lurking in the ocean.
It's double the size of a T.rex.
Its gigantic jaws could crush a car.
And now, it's on the hunt for you.
Megalodon sharks haven't existed for
more than two million years.
But today,
we're bringing these apex predators back
to wreak some havoc.
Now, some people believe
megs never went extinct.
Instead,
they're hiding in the deepest depths
of our oceans,
the Mariana Trench.
Well, if the Megalodons were still around,
that would be the last place you'd find them.
That's because these prehistoric tyrants
hated cold water.
They preferred the warmer waters
of the Mediterranean and the Caribbean.
They also loved to explore
the coasts of Australia and California.
If these predators were around today,
they might seriously ruin your beach vacation.
But if they spotted you swimming in the ocean,
they wouldn't just attack right away.
And this has to do with your size.
Megalodon sharks were gigantic.
At least 16 m (50 ft) in length.
So they needed a lot of food.
Scientists estimate that
megs ate about 1,200 kg (2,500 lb) of fish every day.
To hit their caloric intake goals,
they even dined on sea mammals
like whales and dolphins.
So you, puny human, might not be worth their attention.
Unless you were hanging out with a group of friends.
Now that's a worthier snack.
And the megalodon
could devour you and your friends all in one bite.
Oh, and let me tell you,
these predators had gigantic sharp teeth.
Each one of the megalodon's teeth was as big as your hand.
And unlike us humans,
megs kept producing new sets of teeth
every week or two.
In their lifetime,
they'd go through up to 40,000 of them.
If they never went extinct,
you could find those all over the ocean.
You could find some huge carcasses, too.
But that wouldn't happen all too often.
Scientists think that megalodons
had a lifespan of up to 100 years.
But, you know, even if humans weren’t on the megalodon's menu,
their enormous appetite would hurt us in other ways.
With this huge new predator in the oceans,
there’d barely be any fish left for us.
And not because their boats wouldn't catch anything.
But because they would,
and then megalodons would hunt them down,
attack and eat everything in sight.
It's not clear why megalodons disappeared these millions of years ago.
But it could be because the oceans
got too cold for them.
Well, now they'd be in for a treat
because our oceans are warming up.
Thanks, climate change.
Megalodons would thrive and reproduce.
You'd see more and more of these predators showing up.
They'd be disrupting our shipping operations
and potentially bringing an end
to the cruise industry.
But, eventually, they might die out once again after they ate
whatever they could in the ocean
and had nothing more to feed on.
Or maybe, the rise in global temperatures
would hurt us so much that we'd be the ones to go extinct.
But that's a story for another WHAT IF.