From the brains behind brains on, this is the moment of um.

Moment of Um comes to you from APM Studios. I'm Vivian, the deep sea vibrefish.

Um.

It's not always easy being a highly successful business fish like me.

When you live deep, deep in the ocean like I do, life comes at you pretty fast.

Why, just yesterday I had a day chock full of important meetings.

I talked with the lanternfish association about turning their bioluminescent lights down after

11 p.m. I reviewed the quarterly krill budget. I must have answered a hundred seemales.

All my friends say, Vivian, how do you do it? How do you handle such a high pressure lifestyle?

And to them, I say, it's all about work-life balance. Although when Julian asked the same question the other day, I think he was thinking of a different type of pressure.

Hi, my name is Julian, and I am from Winona, Minnesota.

My question is, if our bodies can't handle the pressure at the bottom of the ocean,

how can an angler fish or a dragonfish's body handle it?

So the main problem with living at the bottom of the ocean is that there's a whole bunch of pressure down there.

So you can think of living at the bottom of the ocean as having more than 16,000

elephants standing on you. Hi, my name's Dr. Keegan-Lutec and I'm an aquatic biologist. So the first

thing that's really important if you're going to live at the bottom of the ocean is that you

don't have a lot of air inside you. Most fish have a gas bladder that helps

them regulate how buoyant they are, so how well they float in the water. Fish at the bottom of the

ocean don't have this gas bladder so it doesn't expand and contract as they move up and down in the

water column and pressure changes.

The second thing is those gases can also be in the blood of a fish, and if your blood ends

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