Something is lurking in the water.

Do you see it?

Close calls like this

happen with whales more often

than you might expect.

And although the people in these videos

got away relatively unscathed,

there's no denying that they were just meters

away from being a whale's lunch.

If you've never seen a whale up close,

it's hard to comprehend just how monstrous

they can really be.

To put it in perspective, the blue whale

is the largest animal on the planet!

Its tongue alone weighs as

much as an elephant, and

it can fit anywhere between 400 and 500 people in its mouth.

But we wouldn't have to worry about one of these guys

swallowing us anytime soon,

because their anatomy makes it nearly impossible.

Instead, we should be more concerned

with their smaller cousins, sperm whales.

In 1891,

reports emerged that a man had been swallowed by one of these whales,

and although he lived to tell the tale,

he would never be the same again...

According to the story,

James Bartley was swallowed when a whale attacked his ship,

and he wasn't retrieved until the following day.

When the crew found and killed the whale,

they quickly brought it on board their ship and cut it open,

revealing an unconscious but very alive James Bartley.

His face and arms were bleached white,

and he was blind,

all thanks to the stomach acids of the whale.

However, as the years went by,

people started poking holes in this story

and questioned whether James had really been swallowed by a whale.

I mean, wouldn't the stomach acids do more damage than just bleaching his skin?

Well, with the power of science, we took a closer look,

and we quickly discovered that if you get swallowed by a whale,

coming back out with shiny white skin would be the least of your worries.

Okay, so the first thing you'd have to worry about

once you were swallowed would be getting shredded to pieces

by the sperm whale's impressive set of teeth.

Each tooth is approximately 20 centimeters long,

that's about the length of an average chef knife,

and whales have anywhere from 40 to 50 of these.

Let's say you're lucky enough to make it past all of them,

next you'd begin your descent down the throat.

Not only would it be dark and slimy down here,

but you'd also find it hard to breathe

due to the lack of oxygen and an increase in methane gas.

As the whale's throat muscles constricted in and out to help force you down,

you'd also start to feel hydrochloric acid beginning to eat away at your skin.

I know what you're thinking,

we just got into this whale, and

James Bartley's story already seems pretty fishy.

Well, you're not wrong, but what would be the fun in stopping now???

So, next you'd be dropped into the first,

and largest, of the whale's four stomachs.

You'd probably be in there for a while, but

the bright side is you might have some light

in the form of a bioluminescent squid or two being noshed on after your arrival;

sperm whales love the neon flying squid.

You'd better enjoy this brief light show, because

after this you'd just be tossed from one stomach to the next,

with the acids breaking down almost all of your body

until you're just a bunch of bones

being unceremoniously ejected from the whale's anus.

So yeah, it's pretty safe to say that

there's no way you could be swallowed whole by a whale

and live to tell the tale.

Sorry, James. You may have been able to fool people in the 1890s,

but we're on to you now.

As vast as they are and as monstrous as they might seem to us,

whales actually have no interest in eating humans.

And if they could talk, they would probably make a point of telling us that.

But that's a topic for another WHAT IF.