7 Unsolved Mysteries About the Deep Ocean

Despite decades of diligent research, there's still so much that we don't know about the deep sea. Join us for a new episode of SciShow as Hank Green takes you through seven unsolved mysteries about the deep ocean that will blow your mind!
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Sources:
The Ocean Floor

Beneath the Seafloor

Brine Pools

Milky Seas

Unidentified Sounds

The 52Hz Whale

Abyssal Gigantism

[SegmentW]

I love learning from this guy. He's a fantastic narrator and teacher.

[joshboustead]

Born to late to explore earth,
Born too early to explore space,

Born just at the right time to explore oceans!!!

[kittehbelleh]

I'm sitting here with 3 cats and a dog. They all looked up with concern, upon hearing the 52 blue whale. My oldest cat wanders the halls making the same sounds when he's lonely. It gets everyone's attention.

[fabricio-agrippa-zarate]

52 Blue sounds like the perfect name for an alternative/indie band.

[Limomon]

52 Blue (B) is only one number and letter above Area (A) 51.
Coincidence? I think so.

[myriaddsystems]

Hank has such an engaging style of presentation- without rising intonation- what's not to like!

[mtbkmlt]

So Lagoon beach in Spongebob is a big brine pool

[enmodo]

Didn't even mention Davy Jones locker

[stormsedgeV]

Am I the only one who gets excited whenever Hank is the host of a video? I mean, I like the other hosts, but there's something special about Hank.

[NickKartha]

Here are the timestamps for the seven things:
0:48 What's the ocean floor like?
2:04 What's under the seafloor?
3:01 Brine Pools
4:16 Milky Seas (mareel)
5:30 The 52 Hertz Whale (52 Blue)
7:15 Upsweep (and the "bloop")
8:32 Why are deep sea creatures so huge?
That's all folks.

[fredivory]

Ocean; "Stop looking at my bottom!"
Human; "Oh, sorry!"

[Titleknown]

Of course, all of these things are likely leading towards a number 8 on the list. Which is, of course, IA IA CTHULHU FTAGHN!

[SayHelloHelli]

Obviously the 52 hertz whale is lugia.

[ravenlord]

It's interesting that many "crazy sea stories by drunken sailors" keep getting "discovered" by science. Rogue wave were still thought to be a myth until the 21st century.

[karlsson]

so, basically, the ocean is dark and full of terrors?

[monke]

*7 things we don't know about the ocean*

1) 95% of it


Bam video done

[LadyD]

When I was a kid someone told me that man had already explored everywhere on earth and everything that could possibly be done had already been done.
I was a kid & didn't know any better so I grew up believing this. Now, I believe it stunted my potential.

[RobertSmith-ikvd]

I have to say that I like how you don't take 20 min to explain 1 simple fact. You do them quickly and accurately. Because of that I'm subscribing

[StolenPvP]

1) Aliens
2) Aliens
3) Aliens
4) Aliens
5) Aliens
6) Aliens
7) Aliens

[Cookiofshadows]

I have an idea as to why creatures can grow so big underwater. As a scuba diver, I have to carry about 80 pounds (40+ for gear and 38 for solid lead). It gets really heavy really fast when I'm walking around with it on land, but once I'm in the water, I'm practically weightless. Water, as we all know, is MUCH denser than air, and in a way supports my weights when I get in. Because of all this extra "support" from the water, animals can grow to much bigger sizes without having to worry about crushing themselves with their own weight. I'd attempt explaining the living at extreme depths thing but that a different story for a different time. :)