USA news on Youtube Apr 17 2018

There is nothing wrong with your television set.

Do not rotate your phone.

You're looking at the upside-down catfish.

Seven different species live in the Nile and Congo Basins of Central Africa.

You might expect it to be anatomically different from a regular catfish.

But it's exactly the same.

So why does this catfish swim all topsy turvy?

Maybe a better question is: How do fish stay right-side up in the first place?

Well, they have an internal air sac that they inflate or empty to go up or down.

It also keeps them upright.

When they want to rise, they draw air from their blood into this swim bladder, and release

it to sink.

This discus fish has swim-bladder disease.

That's why he's having a hard time with which way's up.

Our flipped catfish has a swim bladder too.

And it CAN swim like your standard fish -- if it wants to.

It turns its belly to the nearest surface to probe with its sensory barbels -- those

catfish whiskers.

So what's the point of being upside-down all the time?

Well, near the surface of the water, fish normally run into a problem called wave drag.

Check out these regular catfish.

It happens when their own movement disturbs the water -- making it harder to swim.

But if a fish swims with like this, it doesn't shake up the water as much.

That lets this upside-down-er graze without getting so tired…and save its energy for

evading predators.

There's also more oxygen in the water near the surface, so it's easier to breathe.

And check out how this fish has a dark patch on its stomach.

Its name, "nigri - ventris," means black belly.

That's the reverse of most sea creatures.

From above, that dark coloring camouflages the fish, helping them blend in with the depths.

It's called countershading.

So for these fish, life inverted... just feels right.

And we know they're not the only ones who work an unusual angle...

Whether that's tilted, sideways, or diagonal Sometimes to get by, it doesn't hurt to

be a little different.

Take another look at this anglerfish.

Scientists at the Monterey Bay Aquarium Research Institute filmed it way off the California

coast, at 4000 feet.

...Upside down.

Surprising, these beauties aren't usually found alive.

If you're looking for even more perspectives, try Above the Noise, from KQED and PBS Digital

Studios, the series that cuts through the hype of today's headlines with science.

Thanks for watching – and subscribing – to Deep Look.

For more infomation >> Upside-Down Catfish Doesn't Care What You Think - Duration: 3:49.

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Meet Chloe, Amanda and Reese From Troop 10505 - Duration: 0:52.

- Hi, my name's Chloe.

- And I'm Amanda.

- And I'm Reese.

- [Group] And we're from Girl Scout Troupe 10505.

- Our mission is to create a safer playing environment

for the special needs children of Lakewood Elementary School

located in Alpharetta, Georgia.

- In order to make a safer environment

for the special needs playground we will replace

the wooden chips with a rubber mat flooring,

which wheelchairs can roll on.

And we will also make picnic tables

that are wheelchair accessible.

The reason a rubber matting is so important

is that wooden chips are a huge choking hazard.

- This is why we need your money.

(giggles)

We need you to sponsor us so we can get these mats

for the children.

Please donate to our cause.

And you can also donate at the Pampered Chef party

which will be a huge help.

Thank you so much.

Bye.